Unfit
UNFIT', adjective
1. Not fit; improper; unsuitable.
2. Unqualified; as a man unfit for an office.
UNFIT', verb transitive
1. To disable; to make unsuitable; to deprive of the strength, skill or proper qualities for any thing. Sickness unfits a man for labor.
2. To disqualify; to deprive of the moral or mental qualities necessary for any thing. Sin unfits us for the society of holy beings.