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Synonyms for Indecorous (same or very similar meaning)

WordNet sense 1 (not in keeping with accepted standards of what is right or proper in polite society):
indecent, unbecoming, unseemly, untoward, uncomely

WordNet sense 2 (not suitable or right or appropriate):
improper

WordNet sense 3 (lacking propriety and good taste in manners and conduct):
indelicate


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