Required synonyms such as commanded, binding, and called-for. Required is an adjective, and its antonyms are optional and unnecessary. Additionally, here are 31 synonyms for required and words similar to it.
Binding, Called-for, Commanded, Compulsory, Crucial, Demanded, Dictated, Enforced, Essential, Expected, Fixed, Imperative, Imposed, Incumbent, Indispensable, Inescapable, Involuntary, Mandatory, Must-have, Necessary, Needed, Obligatory, Ordained, Preconditioned, Prescribed, Requisite, Stipulated, Unavoidable, Urgent, and Vital.