[adjective] - too low in quality or too small in amount; not good enoughThis work is woefully (= extremely) inadequate - you'll have to do it again.She has rejected the $2 million offer as totally inadequate.She's a real expert on art, so I feel completely inadequate whenever I talk to her about it.
INADEQUATE
Meaning of INADEQUATE in English
Cambridge English vocab. Кембриджский английский словарь. 2012