- permissible - that may be permitted especially as according to rule; "permissible behavior in school"; "a permissible tax deduction"
Antonyms: impermissible, forbidden, out, prohibited, proscribed, taboo, tabu, verboten, unmentionable, untouchable
- permissible - that may be accepted or conceded; "a kind of speculation that was permissible in cosmology but inadmissible in medicine"
Antonym: inadmissible (indirect, via admissible)