n.
Pronunciation: ' ne-s ə - ˌ ser- ē
Function: adjective
Etymology: Middle English necessarie, from Latin necessarius, from necesse necessary, probably from ne- not + cedere to withdraw ― more at NO
Date: 14th century
1 a : of an inevitable nature : INESCAPABLE b (1) : logically unavoidable (2) : that cannot be denied without contradiction c : determined or produced by the previous condition of things d : COMPULSORY
2 : absolutely needed : REQUIRED