permissible
adjective /pəˈmɪsəbl/
  /pərˈmɪsəbl/
 (formal)- acceptable according to the law or a particular set of rules- permissible levels of nitrates in water
- permissible (for somebody) (to do something) It is not permissible for employers to discriminate on grounds of age.
 Oxford Collocations Dictionaryverbs- be
- consider something
 - perfectly
- constitutionally
- legally
- …
 Word Originlate Middle English: from medieval Latin permissibilis, from permiss- ‘allowed’, from the verb permittere, from per- ‘through’ + mittere ‘send, let go’.