Roget's Thesaurus of English Words and Phrases by Peter Mark Roget

necessaries, necessaries of life; stress, exigency, pinch, sine qua non, matter of necessity; case of need, case of life or death. needfulness, essentiality, necessity, indispensability, urgency. requisition &c (request) 765, (exaction) 741; run upon; demand, call for. charge, claim, command, injunction, mandate, order, precept. desideratum &c (desire) 865; want &c (deficiency) 640. V. require, need, want, have occasion for; not be able to do without, not be able to dispense with; prerequire†. render necessary, necessitate, create a, necessity for, call for, put in requisition; make a requisition &c (ask for) 765, (demand) 741. stand in need of; lack &c 640; desiderate†; desire &c 865; be necessary &c Adj. Adj. required &c v.; requisite, needful, necessary, imperative, essential, indispensable, prerequisite; called for; in demand, in request. urgent, exigent, pressing, instant, crying, absorbing. in want of; destitute of &c 640. Adv. ex necessitate rei &c (necessarily) 601 [Lat.]; of necessity. Phr. there is no time to lose; it cannot be spared, it cannot be dispensed with; mendacem memorem esse oportet [Lat.] [Quintilian]; necessitas non habet legem [Lat.]; nec tecum possum trivere nec sine te [Lat.] [Martial].