Definition of "unfit" in English

adjective

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.

3. (often with for) Unsuitable for a particular purpose.

verb

1. To make unfit; to render unsuitable, spoil, disqualify.