- irregular, maverick, unorthodox - independent in behavior or thought; "she led a somewhat irregular private life"; "maverick politicians"
Antonym: conventional (indirect, via unconventional)
- maverick, rebel - someone who exhibits great independence in thought and action
--1 is a kind of nonconformist, recusant
- maverick - an unbranded range animal (especially a stray calf); belongs to the first person who puts a brand on it
--2 is a kind of calf