inessential, nonessential, unnecessary, unneeded

essential, imperative, sufficient, appropriate, adequate, feasible, proper, insufficient, requisite, indispensable, vital, expedient, advisable, impossible, must, enough, unavoidable, preferable, possible, crucial, prudent, acceptable, worthwhile, doable, unnecessary, wherewithal, paramount, difficult, critical, important, ready, additional, reasonable, viable, beneficial, unfeasible, desirable, able, urgent, justifiable, inexpedient, advantageous, practicable, helpful, correct, satisfactory, useful, superfluous, certain, inevitable, accrual accounting, logical, workable, drastic, mitigatory, inadequate, impractical, sine qua non, undesirable, counterproductive, permissible, invaluable, unacceptable, unadvisable, suitable, problematic, relevant, overdue, infructuous, sure, prohibitive, remedial, meaningful, unable, futile, further, prompt, lawful, ameliorative, easier, practical, mandatory, timeous, obligate, conducive, timely, effective, delegable, obligatory, legitimate, conceivable, sensible, useless, unlikely, consociational, credible, effectual, defensible, foolproof, thorough, decisive, proportionate, ex, con, required, terms, attendances, connections, explanations, guidance, justification, knowl, re, reason, reasons, redemptions, rejections, risks, sustenance, viz, vocational, accrue, sary, needful, indispensible, neceflary, needed, irreplaceable, prerequisite, muchneeded, neceffary, structural

desideratum, need, want

., able, accoutered, accoutred, adulterant, advisable, anastylosis, arginine, assertion, asseveration, averment, a priori, balanced diet, base, basic, basis, behoove, behove, business expense, by any means, by hook or by crook, cabin cruiser, capacitate, catch, chant, compactly, complete, completely, connote, consummate, critical, cruiser, dawdler, decease, die, distinction, divestiture, drone, economic, economical, enough, entail, equipped, equipt, errand, essential, exit, expire, featherbed, force, forced, foundation, full-blown, furnished, get over, go, gusher, haste, hurry, immobilization, implicate, implied, imply, incapable, incumbent onp, indication, indispensable, inessential, inferential, involve, justification, laggard, lagger, long, manned, margin of error, margin of safety, metabolic process, metabolism, metabolite, metastasis, mount, must, mutatis mutandis, need, needed, needful, not able, optional, osmotic pressure, overkill, overmuch, pass, pass away, perish, placenta previa, pleasure boat, pleasure craft, plenty, pleonasm, predicate, preliminary, prepared, presuppose, put on, put out, ram, random-access memory, random access memory, random memory, read/write memory, registered, required, requisite, reserve, restriction, reticence, rig, rigged, safety margin, secondary sex character, secondary sex characteristic, seconder, silent, smother, staple, stipulate, stovepiping, suppose, switch, tacit, taciturnity, toothless, too much, trade expense, trailer, trained, transit, transportation, transportation system, triple, unable, unablep, understood, undocumented, unequipped, unexpected, unnecessary, unneeded, unqualified, unrepaired, unspectacular, verity, vital, want, water, wherever, wherewithal

breathe, entity, respire, something, take a breath

necessity, requirement