necessitates Get Printable Handwriting Hear It! Say It! Write It! Learn It! Spelling Test Definition adjective. to require; to make necessary. Example Sentence This new situation necessitates a different approach to the problem. Synonyms ask; behoove; cause; coerce; command; compel Antonyms unnecessary Hear It! Say It! Write It! necessitates Switch to cursive Start Share with your friends: