adj. 1 sufficing, adequate, enough (is sufficient for a family; didn't have sufficient funds). 2 = SELF-SUFFICIENT. 3 archaic competent; of adequate ability, resources, etc. sufficiently adv.
[ ME f. OF sufficient or L sufficiens (as SUFFICE) ]
SUFFICIENT
Meaning of SUFFICIENT in English
Concise Oxford English dictionary. Краткий оксфордский словарь английского языка. 2012