permissible

/pərˈmɪsəbəl/

/pəˈmɪsɪbəl/

If something is permissible, then it is allowed. If it's not permissible then you probably shouldn't be doing it.

If someone asked you, "Is it permissible for me to have a cupcake?" they're asking very formally for your permission to dig in. Usually the word permissible has to do with laws, rules, and what's generally acceptable. It's not permissible to take your pants off in public, for example. Wearing a hat inside is permissible according to the law, but it's not permissible according to church customs or your grandma's rules.

Definitions of permissible

1. adjective

   that may be permitted especially as according to rule
   “permissible behavior in school”

   “a permissible tax deduction”

   synonyms: allowable, allowed

   tolerable

   capable of being borne or endured

   antonyms:

   impermissible

   not permitted

   forbidden, out, prohibited, proscribed, taboo, tabu, verboten

   excluded from use or mention

   unmentionable

   unsuitable or forbidden as a topic of conversation

   untouchable

   forbidden to the touch

   intolerable, unbearable, unendurable

   incapable of being put up with
2. adjective

   that may be accepted or conceded
   “a kind of speculation that was permissible in cosmology but inadmissible in medicine”

   synonyms:

   admissible

   deserving to be admitted