(ת') (ניתן)חינם; חופשי; מיותר; ללא סיבה

adj. given without charge, free; unwarranted, having no apparent cause

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Adjective
1. without cause; "a gratuitous insult"
(similar) unmerited
2. costing nothing; "complimentary tickets"
(synonym) complimentary, costless, free, gratis(p)
(similar) unpaid
3. unnecessary and unwarranted; "a strikers' tent camp...was burned with needless loss of life"
(synonym) needless, uncalled-for
(similar) unnecessary, unneeded

Przym. bezpłatny

(a.)
Not called for by the circumstances; without reason, cause, or proof; adopted or asserted without any good ground; as, a gratuitous assumption.
  

(a.)
Given without an equivalent or recompense; conferred without valuable consideration; granted without pay, or without claim or merit; not required by justice.
  

Synonyms and related words:
God-given, accorded, aimless, allowed, amorphous, arbitrary, autonomous, baseless, bestowed, biggety, bluff, bottomless, brash, capricious, casual, charitable, cheeky, chutzpadik, cocky, complimentary, contemptuous, costless, crusty, de trop, derisive, desultory, disarticulated, discontinuous, discretional, discretionary, disjunct, disordered, dispensable, dispersed, disproportionate, disrespectful, elective, eleemosynary, erratic, excess, expendable, expenseless, expletive, facy, fitful, flip, flippant, for free, for love, for nothing, formless, free, free as air, free for nothing, free gratis, free of charge, free of cost, free will, freebie, fresh, frivolous, gally, giftlike, given, granted, gratis, groundless, haphazard, hit-or-miss, immethodical, impertinent, impudent, in excess, inchoate, incoherent, indefensible, independent, indiscriminate, irrational, irregular, malapert, meaningless, misshapen, needless, nervy, nonessential, nonmandatory, nonsymmetrical, nonsystematic, nonuniform, offered, on the house, optional, orderless, pert, planless, pleonastic, proffered, prolix, promiscuous, providential, random, reasonless, redundant, rude, sassy, saucy, self-acting, self-active, self-determined, self-determining, senseless, shapeless, smart, smart-alecky, smart-ass, spare, spasmodic, spontaneous, sporadic, straggling, straggly, supererogatory, superfluous, systemless, tautologic, tautologous, to spare, unarranged, unasked, unbesought, unbidden, unbought, uncalled-for, unclassified, uncoerced, uncompelled, undirected, unessential, unforced, unfounded, ungraded, ungrounded, uninfluenced, uninvited, unjoined, unjustifiable, unjustified, unlooked-for, unmethodical, unnecessary, unneeded, unordered, unorganized, unpaid-for, unpressured, unprompted, unrequested, unrequired, unsolicited, unsorted, unsought, unsupportable, unsymmetrical, unsystematic, untaxed, ununiform, unwarranted, unwelcome, vague, verbose, voluntary, volunteer, vouchsafed, wandering, wanton, willful, willing, wise-ass, without charge