part of speech: adjective

definition 1: needed; not able to be put aside.

  • My brother does not have the cash necessary to buy a car.
  • A strong goalie is a necessary part of a soccer team.

synonyms: essential, indispensable

antonyms: needless, unnecessary

definition 2: expected or needed under given circumstances.

  • He made the necessary arrangements for his guests.

synonyms: compulsory, expected, required

antonyms: needless, unnecessary