Thesaurus
Synonyms & Antonyms of proper
1
following the established traditions of refined society and good taste
- the formal ball called for proper attire—tuxedos and full-length gowns only
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2
being in agreement with the truth or a fact or a standard
- there is really more than one proper way to pronounce that word in English
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3
marked by or showing careful attention to set forms and details
- we had nodded and said hello to one another but had never had a proper introduction
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4
meeting the requirements of a purpose or situation
- you'll need to have a proper diet if you want to lose weight
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- applicable,
- appropriate,
- apt,
- becoming,
- befitting,
- felicitous,
- fit,
- fitted,
- fitting,
- good,
- happy,
- meet,
- pretty,
- right,
- suitable
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5
serving to identify as belonging to an individual or group
- malaria and other diseases that are proper to the tropics
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Merriam-Webster unabridged
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Time Traveler for proper
The first known use of proper was in the 14th century
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