different between unfit vs untrained

English

From un- +? fit.

unfit (comparative unfitter or more unfit, superlative unfittest or most unfit)

Not fit; not having the correct requirements.
Synonym: unsuitable
Antonyms: fit, suitable
Not fit, not having a good physical demeanor.
Synonym: out of shape
Antonyms: fit, in shape

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

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.

un- +? trained

untrained (not comparable)

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