I. “+ adjective
: not fit:
a. : not adapted to an end, object, or design : unsuitable , inappropriate
land unfit for farming
food unfit for human consumption
b. : not fitted : not qualified : incapable , incompetent
clearly unfit by temperament to assume such a responsibility
eliminated unfit candidates by examination
c.
(1) : physically or mentally unsound
certified as unfit for army service
(2) : not qualified by reason of poor physical condition
reported drunk and unfit for duty
II. noun
: one that is unfit
many are moral failures … or physical unfits — D.D.Lescohier
III. transitive verb
Etymology: un- (II) + fit
: to make unfit : disable , disqualify
has a record that unfits him for the presidency
an education that unfitted him for the life of a farmer
doing one's duty … apparently unfitted one for doing anything else — Edith Wharton