Webster's 1828 Dictionary
REQUIRED
pp. Demanded; needed; necessary.
New American Oxford Dictionary
required
re quired |riˈkwīrd rɪˈkwaɪərd | ▶adjective officially compulsory, or otherwise considered essential; indispensable: eight editions were published, each required reading for trainees. • in keeping with one's wishes; desired: the corset, the garment that ensured the required female shape.
Oxford Dictionary
required
re |quired |rɪˈkwʌɪəd | ▶adjective officially compulsory, or otherwise considered essential; indispensable: eight editions were published, each required reading for trainees. • in keeping with one's wishes; desired: the corset, the garment that ensured the required female shape.
American Oxford Thesaurus
required
required adjective 1 required reading: essential, vital, indispensable, necessary, compulsory, obligatory, mandatory, prescribed; informal must-have. ANTONYMS optional. 2 cut it to the required length: desired, preferred, chosen; correct, proper, right.
Oxford Thesaurus
required
required adjective 1 the book is required reading for everyone interested in philosophical thought: essential, vital, indispensable, necessary, needed, called for, requisite, prerequisite; compulsory, obligatory, mandatory, prescribed, statutory; recommended, set; French de rigueur. ANTONYMS optional, inessential. 2 cut the cable to the required length: desired, preferred, chosen, selected; correct, proper, right.
The Wordsmith Dictionary