1. someone unable to adapt to their circumstances
The Collaborative International Dictionary of English v.0.48:
Misfit \Mis*fit"\, n.
1. The act or the state of fitting badly; as, a misfit in
making a coat; a ludicrous misfit.
2. Something that fits badly, as a garment.
I saw an uneasy change in Mr. Micawber, which sat
tightly on him, as if his new duties were a misfit.
3. A person who does not fit in comfortably with the
surrounding situation or society; one who cannot conform
or adjust to the circumstances in which he lives.
Moby Thesaurus II by Grady Ward, 1.0:
41 Moby Thesaurus words for "misfit":
Bohemian, anomaly, beatnik, black sheep, blemish, crosspatch,
deviant, dissenter, dropout, eccentric, flower child, foreign body,
foreign intruder, freak, heretic, hippie, impurity, individual,
individualist, inner-directed person, intruder, maverick,
monkey wrench, mote, naysayer, nonconformist, nonjuror, oddball,
original, sectarian, sectary, sliver, speck, splinter, sport,
stone, swinger, ugly duckling, unconformist, weed, yippie