| crackpot(character, dissentient, misfit) |
| crazyman(character, dissentient, misfit) |
| critic(noun, radical, revolutionary, detractor, subversive) |
| cynic(noun, radical, revolutionary, critic, detractor) |
| dement(character, dissentient, misfit) |
| denouncer(noun, radical, revolutionary, critic, detractor) |
| deranged person(expression, character, dissentient, misfit) |
| detractor(noun, radical, revolutionary, critic, subversive) |
| different |
| different breed(noun, expression, character, original, liberal) |
| ding-a-ling(character, dissentient, misfit) |
| dingbat(character, dissentient, misfit) |
| disectarian(noun, rebel, opponent, guerrilla, individualist) |
| dogmatist(noun, partisan) |
| dropout(noun, original, liberal, beliefs) |
| eccentric(noun, adjective, character, unusual, original) |
| eremite |
| experientialist(noun, rebel, opponent, guerrilla, individualist) |
| experimenter(noun, rebel, opponent, guerrilla, individualist) |
| extremist |