- needed, needful, required, requisite - necessary for relief or supply; "provided them with all things needful"
Antonyms: unnecessary, unneeded (indirect, via necessary)
- compulsory, mandatory, required - required by rule; "in most schools physical education are compulsory"; "attendance is mandatory"; "required reading"
Antonym: optional (indirect, via obligatory)
- necessitate, ask, postulate, need, require, take, involve, call for, demand - require as useful, just, or proper; "It takes nerve to do what she did"; "success usually requires hard work"; "This job asks a lot of patience and skill"; "This position demands a lot of personal sacrifice"; "This dinner calls for a spectacular dessert"; "This intervention does not postulates a patient's consent"
Sample sentences:Derived form: noun requirement1
Something ----s something
=> Somebody ----s somebody to INFINITIVE
=> It ----s that CLAUSE
- ask, require, expect - consider obligatory; request and expect; "We require our secretary to be on time"; "Aren't we asking too much of these children?"; "I expect my students to arrive in time for their lessons"
--2 is one way to demand
Sample sentence:Derived form: noun requirement1
They require him to write the letter
- command, require, compel - make someone do something
--3 is one way to order, tell, enjoin, say
Sample sentence:Derived form: noun requisition1
They require him to write the letter
- want, need, require - have need of; "This piano wants the attention of a competent tuner"
--4 is one way to be
Sample sentences:Derived form: noun requirement2
They require more bread
They require him to write the letter