- to have need of; need: He requires medical care.
- to call on authoritatively; order or enjoin to do something: to require an agent to account for money spent.
- to ask for authoritatively or imperatively; demand.
- to impose need or occasion for; make necessary or indispensable: The work required infinite patience.
- to call for or exact as obligatory; ordain: The law requires annual income-tax returns.
- to place under an obligation or necessity: The situation requires me to take immediate action.
- Chiefly British. to desire; wish to have: Will you require tea at four o'clock?
- to demand; impose obligation: to do as the law requires.
Origin of require
SynonymsSee more synonyms for on Thesaurus.com
- to have need of; depend upon; want
- to impose as a necessity; make necessarythis work requires precision
- (also intr) to make formal request (for); insist upon or demand, esp as an obligation
- to call upon or oblige (a person) authoritatively; order or commandto require someone to account for his actions
Word Origin and History for unrequired
late 14c., "to ask a question, inquire," from Old French requerre "seek, procure; beg, ask, petition; demand," from Vulgar Latin *requaerere, from Latin requirere "seek to know, ask," from re-, here perhaps meaning "repeatedly" (see re-), + quaerere "ask, seek" (see query (v.)).
The original sense of this word has been taken over by request (v.). Sense of "demand (someone) to do (something)" is from 1751, via the notion of "to ask for imperatively, or as a right" (late 14c.). Related: Required; requiring.