insufficient
/ˌɪnsəˈfɪʃənt/adjective
- not enough; inadequate不足的, 不够的：
there was insufficient evidence to convict him.
没有足够的证据判他有罪。
派生词
insufficiently
adverb词源
late Middle English （in the sense 'incapable, incompetent'）： via Old French from late Latin insufficient- 'not sufficing', from in- 'not' + Latin sufficere （see SUFFICE）.