Synonyms for (adjective) indecorous

Synonyms: indecent, indecorous, unseemly, untoward, unbecoming, uncomely

Definition: not in keeping with accepted standards of what is right or proper in polite society

Usage: was buried with indecent haste; indecorous behavior; language unbecoming to a lady; unseemly to use profanity; moved to curb their untoward ribaldry

Similar words: improper

Definition: not suitable or right or appropriate

Usage: slightly improper to dine alone with a married man; improper medication; improper attire for the golf course