Part of speech: Adjective
not in good physical or mental condition
Example: out of condition; fat and very unfit; certified as unfit for army service; drunk and unfit for service
Part of speech: Adjective
below the required standards for a purpose
Example: an unfit parent; unfit for human consumption
Part of speech: Adjective (satellite)
physically unsound or diseased
Example: has a bad back; a bad heart; bad teeth; an unsound limb; unsound teeth
Part of speech: Verb
make unfit or unsuitable
Example: Your income disqualifies you