decorous

Something that is decorous is dignified, proper, and in good taste, like your decorous great-aunt who always wears a dress — even when she's only headed to the grocery store.

The adjective decorous shares its origins with decoration. Both words come from the Latin word decor, meaning "beauty, elegance, charm, grace, ornament." So, something decorous is attractive. Decorous can also mean "dignified or proper," like your decorous habit of saying, "How do you do?" when you meet someone for the first time.

Definitions of decorous
  1. adjective
    characterized by propriety and dignity and good taste in manners and conduct
    “the tete-a-tete was decorous in the extreme”
    Synonyms:
    in good taste
    satisfying generally accepted social or esthetic standards
    sedate, staid
    characterized by dignity and propriety
    proper
    marked by suitability or rightness or appropriateness
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    Antonyms:
    indecorous, indelicate
    lacking propriety and good taste in manners and conduct
    indecent
    offensive to good taste especially in sexual matters
    improper
    not suitable or right or appropriate
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  2. adjective
    according with custom or propriety
    synonyms: becoming, comely, comme il faut, decent, seemly
    proper
    marked by suitability or rightness or appropriateness
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