If something is inadequate, there is not enough of it or it is not good enough. 不足的; 不够好的
adjective [原级]不充分的,不足的,不够好的;不能胜任的,信心不足的
If someone feels inadequate, they feel that they do not have the qualities and abilities necessary to do something or to cope with life in general. 能力不足的
inadequate
“ -ate” ⌜ 表示使成为或具有某种特性的 - indicating to make or become ~ ⌟