maverick
[noun]
Synonyms:
- rebel, dissenter, eccentric, heretic, iconoclast, individualist, nonconformist, protester, radical
[adjective]
Synonyms:
- rebel, dissenting, eccentric, heretical, iconoclastic, individualistic, nonconformist, radical

[TahlilGaran] English Synonym Dictionary ▲

mav‧e‧rick /ˈmævərɪk/ noun [countable]
[Date: 1800-1900; Origin: Samuel A. Maverick (1803-70), U.S. cattle owner who did not mark some of his young cattle]
an unusual person who has different ideas and ways of behaving from other people, and is often very successful:
He’s always been a bit of a maverick.
—maverick adjective [only before noun]:
a maverick detective

[TahlilGaran] Dictionary of Contemporary English ▲