unfit

Từ điển American Heritage Dictionary 4th

un·fit (ŭn-fĭtʹ)adj.
1. Not meant or adapted for a given purpose; inappropriate:
a solvent that is unfit for use on wood surfaces.
2. Below the required standard; unqualified:
an unfit parent.
3. Not in good physical or mental health.
4. Biology. Unable to survive or produce viable offspring in a particular environment.tr.v. un·fit·ted, un·fit·ting, un·fits
To cause to be unsuited or unqualified: “Having run for president... often unfits a man for lesser or more useful subsequent work” (Garry Wills).  un·fitʹly adv.un·fitʹness n.

• Từ đồng nghĩa / Synonyms:
  bad, unsound, disqualify, indispose
• Từ trái nghĩa / Antonyms:
  fit, qualify, dispose