properest

Adjective

proper (comparative more proper, superlative most proper)

1. Suited or acceptable to the purpose or circumstances; fit, suitable.
   • the proper time to plant potatoes

   Synonyms:

   correct, right, apt, prudent, upright, sensible, fitting, allowable, appropriate, apropos

   Antonyms:

   incorrect, wrong, bad, imprudent, insensible, improper, discommensurate, inappropriate, malapropos, inapt

2. Following the established standards of behavior or manners; correct or decorous.
   • a very proper young lady

   Synonyms:

   appropriate, decent, good, polite, right, well-mannered, upright, halal, homodox, kosher

   Antonyms:

   inappropriate, indecent, bad, impolite, wrong, ill-mannered, unseemly, blasphemous, haram, heretical

3. Such that the preimage of every compact set is compact.
4. Continuous, mapping closed sets to closed sets, and such that the preimage of every point is compact.
5. Separated, of finite type, and universally closed.
6. Such that unique morphism from the variety to k is proper (as above).

See all 25 meanings of proper