unfit

From un- +‎ fit.

• (UK, US) IPA^(key): /ʌnˈfɪt/
• Rhymes: -ɪt

unfit (comparative unfitter, superlative unfittest)

1. Not fit; not having the correct requirements.

   Jack cannot run, making him unfit for the track team.

2. Not fit, not having a good physical demeanor.

   I've become so unfit after stopping cycling to town.

unfit (third-person singular simple present unfits, present participle unfitting, simple past and past participle unfitted)

1. To make unfit; to render unsuitable, spoil, disqualify.
   • 1851, Herman Melville, Moby-Dick:

     He [...] added that he was fearful Christianity, or rather Christians, had unfitted him for ascending the pure and undefiled throne of thirty pagan Kings before him.

   • 1946, Bertrand Russell, History of Western Philosophy, I.30:

     These preoccupations unfitted the soldiers for the defence of the frontier, and permitted vigorous incursions of Germans form the north and Persians from the east.

• fit
• unfitly
• unfitness
• unsuitable
• inappropriate