〔足りない〕insufficient ((for; to do));〔不適当な〕inadequate ((for; to do))
- 栄養が不十分なため病気になった
- He became ill from insufficient [inadequate] nourishment.
- 校長としては能力が不十分である
- He is incompetent as a principal.
- 資金が不十分である
- 「be short of [do not have enough] funds ((to do))
- 証拠不十分のため不起訴になった
- He was acquitted 「for lack of [because of insufficient] evidence.