What is another word for improper?

Need synonyms for improper? Here's a list of words from our thesaurus that you can use instead.

Not in accordance with accepted standards, especially of morality or honesty
“During the festive season, injuries result from improper use of fireworks.”
Lacking in modesty or decency
“He touched himself in public without thought as to how improper it may be to others.”
Vulgar, immoral
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