What is the opposite of iffy?

Need antonyms for iffy? Here's a list of opposite words from our thesaurus that you can use instead.

Adjective
Opposite of full of uncertainty
Adjective
Opposite of of doubtful quality or legality
Adjective
Opposite of not able to be predicted
Adjective
(of a situation or problem) Opposite of having a high likelihood of becoming dire or turning into a crisis
“The patient has stabilized and is now safe.”
Adjective
Opposite of doubtful in terms of truth or validity
more ❯
“No-one is foolish enough to doubt his talent, yet it remains an indisputable fact that he has never won the games that really matter.”
Adjective
Opposite of suffering from an illness or disease or feeling unwell
“A healthy child was delivered at term, and the couple will be offered prenatal diagnosis in subsequent pregnancies.”
Adjective
Opposite of not supported or proven by evidence
Adjective
Opposite of incapable of being put into one-to-one correspondence with the natural numbers or any subset thereof
Adjective
Opposite of based on a mistaken belief
Adjective
Opposite of tentative, unsure, or slow in acting or speaking
Adjective
Opposite of of questionable or dishonest character
Adjective
Opposite of dangerously insecure or unstable
“The main section is more stable, though there are ongoing concerns over coastal erosion, further slippage, and subsidence.”
Adjective
Opposite of having or showing a cautious distrust of someone or something
“Grant displayed no guile, was remarkably honest, and trusting of others to a fault.”
Adjective
Opposite of likely to change at any time
“Keeping a constant body temperature is the most serious challenge facing warm-blooded mammals in an aquatic environment.”
Adjective
Opposite of using, exercising or showing caution
Adjective
Opposite of undecided or unsure of how to act
“His public persona is that of a strong, determined leader, but in his private life, he's very insecure.”
Adjective
Opposite of dishonest and not to be trusted
“Bridget was a lady of gentle manner and a fine and dependable neighbor who was always happy to lend a helping hand.”
Adjective
Opposite of alarming and difficult
Adjective
Opposite of much debated, discussed or disputed
Adjective
Opposite of conditional
Adjective
Opposite of causing difficulty, problems or trouble
“I am looking forward to a relaxed and comfortable day at the spa.”
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