insufficient /ˌɪnsəˈfɪʃənt/ adjective Learner's definition of INSUFFICIENT
[more insufficient; most insufficient] somewhat formal
: not having or providing enough of what is needed : not sufficient不足的;不充分的 —
often followed by to + verb常接动词不定式 —
often + for — insufficiency
/ˌɪnsəˈfɪʃənsi/ noun, plural insufficiencies [count, noncount]