Anything indispensable.

synonyms: essential, necessity, requirement, requisite.

Roget 191: receptacle; inclosure etc. 232; recipient, receiver, reservatory.    compartment; cell, cellule; follicle; hole, corner, niche, recess, nook; crypt, stall, pigeonhole, cove, oriel; cave etc. (concavity) 252.    capsule, vesicle, cyst, pod, calyx, cancelli, utricle, bladder; pericarp, udder.    stomach, paunch, venter, ventricle, crop, craw, maw, gizzard, breadbasket; mouth.    pocket, pouch, fob, sheath, scabbard, socket, bag, sac, sack, saccule, wallet, cardcase, scrip, poke, knit, knapsack, haversack, sachel, satchel, reticule, budget, net; ditty bag, ditty box; housewife, hussif; saddlebags; portfolio; quiver etc. (magazine) 636.    chest, box, coffer, caddy, case, casket, pyx, pix, caisson, desk, bureau, reliquary; trunk, portmanteau, band-box, valise; grip, grip sack [U.S.]; skippet, vasculum; boot, imperial; vache; cage, manger, rack.    vessel, vase, bushel, barrel; canister, jar; pottle, basket, pannier, buck-basket, hopper, maund^†, creel, cran, crate, cradle, bassinet, wisket, whisket, jardiniere, corbeille, hamper, dosser, dorser, tray, hod, scuttle, utensil; brazier; cuspidor, spittoon.    [For liquids] cistern etc. (store) 636; vat, caldron, barrel, cask, drum, puncheon, keg, rundlet, tun, butt, cag, firkin, kilderkin, carboy, amphora, bottle, jar, decanter, ewer, cruse, caraffe, crock, kit, canteen, flagon; demijohn; flask, flasket; stoup, noggin, vial, phial, cruet, caster; urn, epergne, salver, patella, tazza, patera; pig gin, big gin; tyg, nipperkin, pocket pistol; tub, bucket, pail, skeel, pot, tankard, jug, pitcher, mug, pipkin; galipot, gallipot; matrass, receiver, retort, alembic, bolthead, capsule, can, kettle; bowl, basin, jorum, punch bowl, cup, goblet, chalice, tumbler, glass, rummer, horn, saucepan, skillet, posnet^†, tureen.    [laboratory vessels for liquids] beaker, flask, Erlenmeyer flask, Florence flask, round-bottom flask, graduated cylinder, test tube, culture tube, pipette, Pasteur pipette, disposable pipette, syringe, vial, carboy, vacuum flask, Petri dish, microtiter tray, centrifuge tube.    bail, beaker, billy, canakin; catch basin, catch drain; chatti, lota, mussuk, schooner [U.S.], spider, terrine, toby, urceus.    plate, platter, dish, trencher, calabash, porringer, potager, saucer, pan, crucible; glassware, tableware; vitrics.    compote, gravy boat, creamer, sugar bowl, butter dish, mug, pitcher, punch bowl, chafing dish.    shovel, trowel, spoon, spatula, ladle, dipper, tablespoon, watch glass, thimble.    closet, commode, cupboard, cellaret, chiffonniere, locker, bin, bunker, buffet, press, clothespress, safe, sideboard, drawer, chest of drawers, chest on chest, highboy, lowboy, till, scrutoire^†, secretary, secretaire, davenport, bookcase, cabinet, canterbury; escritoire, etagere, vargueno, vitrine.    chamber, apartment, room, cabin; office, court, hall, atrium; suite of rooms, apartment [U.S.], flat, story; saloon, salon, parlor; by-room, cubicle; presence chamber; sitting room, best room, keeping room, drawing room, reception room, state room; gallery, cabinet, closet; pew, box; boudoir; adytum, sanctum; bedroom, dormitory; refectory, dining room, salle-a-manger; nursery, schoolroom; library, study; studio; billiard room, smoking room; den; stateroom, tablinum, tenement.    [room for defecation and urination] bath room, bathroom, toilet, lavatory, powder room; john, jakes, necessary, loo; [in public places] men's room, ladies' room, rest room; [fixtures] (uncleanness). 653 attic, loft, garret, cockloft, clerestory; cellar, vault, hold, cockpit; cubbyhole; cook house; entre-sol; mezzanine floor; ground floor, rez-de-chaussee; basement, kitchen, pantry, bawarchi-khana, scullery, offices; storeroom etc. (depository) 636; lumber room; dairy, laundry.    coach house; garage; hangar; outhouse; penthouse; lean-to.    portico, porch, stoop, stope, veranda, patio, lanai, terrace, deck; lobby, court, courtyard, hall, vestibule, corridor, passage, breezeway; ante room, ante chamber; lounge; piazza, veranda.    conservatory, greenhouse, bower, arbor, summerhouse, alcove, grotto, hermitage.    lodging etc. (abode) 189; bed etc. (support) 215; carriage etc. (vehicle) 272.    ... show more

Dutch: vereiste

Absolutely essential.

Roget 601: necessary, needful etc. (requisite) 630.    fated; destined etc. v.; elect; spellbound compulsory etc. (compel) 744; uncontrollable, inevitable, unavoidable, irresistible, irrevocable, inexorable; avoidless^†, resistless.    involuntary, instinctive, automatic, blind, mechanical; unconscious, unwitting, unthinking; unintentional etc. (undesigned) 621; impulsive etc. 612.    ... show more

Roget 630: required etc. 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 etc. 640.    ... show more

Roget 478: demonstrating etc. v., demonstrative, demonstrable; probative, unanswerable, conclusive; apodictic^†, apodeictic^†, apodeictical^†; irresistible, irrefutable, irrefragable; necessary.    categorical, decisive, crucial.    demonstrated etc. v.; proven; unconfuted^†, unanswered, unrefuted^†; evident etc. 474.    deducible, consequential, consectary^†, inferential, following.    [demonstrated to one's satisfaction] convincing, cogent, persuasive (believable) 484.    ... show more

Polish: niezbędny, konieczny, niezastąpiony, nieodzowny

Unavoidably determined by prior circumstances.