What is another word for perplexing ?

too difficult to understand

Confusing or puzzling

difficult to understand

full of twists and turns

impossible to understand

ravelled^UK

raveled^US

not easily understood

too hard to understand

double Dutch

indistinct

indissoluble

impossible to separate

laboured^UK

skillful^US

labored^US

skilful^UK

impossible to cope with

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“Instead, we are confronted with definitive declarations, even regarding the most perplexing of texts.”

Adjective

not quite right in the head

Unusual or out of the ordinary

off-colour^UK

off-color^US

like nothing on earth

flakey^US

flaky^UK

marvellous^UK

marvelous^US

labored^US

laboured^UK

unequalled^UK

unrivaled^US

specialized^US

unrivalled^UK

unequaled^US

specialised^UK

phony^US

in a league of its own

phoney^UK

customized^US

customised^UK

unsavoury^UK

unsavory^US

never to be forgotten

potentially dishonest

untrammeled^US

never before encountered

have bats in the belfry

not right in the head

sick in the head

not right upstairs

have kangaroos in the top paddock

away with the fairies

of unsound mind

mentally unbalanced

stark staring mad

not the full shilling

extremely implausible

not in the least likely

beyond the bounds of possibility

extremely difficult to believe

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Adjective

Requiring great skill or finesse in handling or treatment

dishonoring^US

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Adjective

Causing anxiety or concern

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Adjective

between rock and hard place

Hard to perceive or understand

woolly^UK

wooly^US

gray^US

grey^UK

a controversial subject

between sixes and sevens

on the horns of a dilemma

not definite

in a state of uncertainty

skeptical^US

sceptical^UK

neither fish nor fowl

neither one thing nor the other

generalized^US

generalised^UK

blurred round the edges

unlikely

having opposing views

having clashing views

having conflicting views

having contradictory views

potentially dangerous

potentially false

not kosher

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Adjective

economical with the truth

Deceptive or tending to mislead or create a false impression

phony^US

phoney^UK

colored^US

coloured^UK

terminologically inexact

not backed up by evidence

uncalled-for

mechanical

not what it is cracked up to be

wannabe

as it were

would-be

to all intents and purposes

flakey^US

flaky^UK

not thinking straight

barking up wrong tree

labouring under a misapprehension

barking up the wrong tree

beyond the bounds of possibility

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Adjective

Distressing to the mind or senses

unfavorable^US

somber^US

sombre^UK

looking on the black side

unsavory^US

unsavoury^UK

humourless^UK

humorless^US

gray^US

grey^UK

grueling^US

gruelling^UK

ill-favored^US

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Noun

stopping someone in their tracks

The state of being bewildered or unclear in one's mind about something

skepticism^US

scepticism^UK

lack of comprehension

state of bewilderment

state of disorientation

lack of understanding

state of stupefaction

dishonor^US

dishonour^UK

state of perturbation

source of consternation

kick in the teeth

source of distress

a bolt out of the blue

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Verb

Causing of amazement

taking your breath away

taking the wind out of your sails

setting someone back on their heels

galvanizing^US

galvanising^UK

paralysing^UK

completely surprising

traumatising^UK

knocking out

insulting

hitting like ton of bricks

grossing out

raising someone's eyebrows

paralyzing^US

shaking out of your complacency

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Verb

making someone scratch their head

Present participle for to confound or perplex someone

baulking^UK

balking^US

ravelling^UK

raveling^US

muddying the waters

snarling up

causing to be at a stand

setting someone thinking

messing with one's head

making your head spin

striking dumb

sticking it to

stopping someone in their tracks

filling with amazement

screwing up

knocking the stuffing out of

causing to lose your bearings

hitting like a ton of bricks

obnubilating

making more difficult

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“They were perplexing a subject plain in itself.”

Verb

Present participle for to make something more complex

raveling^US

ravelling^UK

making more difficult

throwing into disorder

rendering unintelligible

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Verb

filling with consternation

Present participle for to fill with distress or alarm

terrorising^UK

terrorizing^US

paralysing^UK

paralyzing^US

messing up

throwing into a tizzy

putting someone off their stroke

putting someone off their stride

putting out of countenance

making someone scratch their head

setting someone back on their heels

pulling the rug from under

pulling the rug out from under

beleaguering

causing anguish to

causing suffering to

causing to be at a stand

hurting somebody's feelings

causing discomfort to

making self-conscious

taking the wind out of your sails

tantalising^UK

tantalizing^US

causing someone to lose their composure

balking^US

baulking^UK

stopping someone in their tracks

petrifying

frighting

scarifying

upsetting the applecart

consternating

straitening

making one's hair stand on end

scaring to death

filling with fear

scaring someone out of their wits

scaring the bejesus out of

scaring the pants off

throwing into a panic

frightening the living daylights out of

throwing into a blue funk

frightening to death

scaring stiff

scaring the living daylights out of

pushing the buttons of

giving someone goose pimples

mithering

chilling to the marrow

biting

scaring away

giving someone the heebie-jeebies

eating away at

rubbing up the wrong way

knocking out

curdling the blood

getting on your wick

putting the fear of God into

giving someone the hump

making someone see red

scaring off

throwing a curve

getting on your nerves

making teeth chatter

getting your back up

getting under your skin

making someone jump out of their skin

driving bananas

getting in your hair

making one's blood run cold

getting on one's nerves

scaring the daylights out of

getting your hackles up

getting your dander up

making your blood boil

ruffling one's feathers

trying your patience

getting up someone's nose

making somebody's hackles rise

pouring cold water on

throwing cold water on

making flesh crawl

rubbing the wrong way

giving someone a jolt

giving someone a fright

sending over the edge

giving cause for complaint

failing to satisfy

leaving dissatisfied

putting your back up

raising someone's eyebrows

throwing into tizzy

estranging

completely surprising

shaking out of your complacency

hitting like ton of bricks

freezing your blood

getting the wind up

throwing into a fright

making one's flesh creep

giving one the creeps

scaring someone half to death

making resentful

making bitter

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Verb

Present participle for to harass, annoy, or cause trouble to (someone)

breathing down someone's neck

tantalising^UK

tantalizing^US

rubbing up the wrong way

driving up the wall

picking on

getting on your nerves

bending someone's ear

carping at

making somebody's hackles rise

driving round the bend

driving round the twist

getting up someone's nose

putting the squeeze on

giving the business

jumping on one's case

making someone see red

giving someone the hump

getting your back up

driving bananas

getting under your skin

egging on

making your blood boil

ruffling one's feathers

trying your patience

getting your dander up

eating at

getting your hackles up

getting on one's nerves

hacking you off

messing with

driving you up the wall

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Verb