undefined

• POS: Adjective
• HYPHEN: un=de=fined

OXFORD DICTIONARY

undefined, adj.
1 not defined.
2 not clearly marked; vague, indefinite.

Derivative

undefinable adj. undefinably adv.

THESAURUS

undefined

aleatoric, aleatory, all-knowing, all-powerful, all-seeing, all-wise, almighty, amorphic, amorphous, anarchic, anonymous, baggy, blear, bleared, bleary, blobby, blurred, blurry, boundless, broad, chance, chancy, changeless, chaotic, characterless, confused, creating, creative, cryptonymic, cryptonymous, dark, dim, disordered, disorderly, eternal, eternally the same, everlasting, faint, featureless, feeble, filmy, foggy, formless, fuzzy, general, glorious, good, half-seen, half-visible, hallowed, hazy, highest, hit-or-miss, holy, ill-defined, immortal, immutable, imprecise, inaccurate, inchoate, incognito, incoherent, inconspicuous, indecisive, indefinable, indefinite, indeterminable, indeterminate, indistinct, indistinguishable, inexact, infinite, inform, innominate, just, kaleidoscopic, lax, limitless, loose, loving, low-profile, luminous, lumpen, majestic, making, merciful, merely glimpsed, misty, nameless, nondescript, nonspecific, numinous, obscure, omnipotent, omnipresent, omniscient, one, orderless, out of focus, pale, permanent, perpetual, radiant, random, sacred, semivisible, shadowed forth, shadowy, shapeless, shaping, sovereign, stochastic, supreme, sweeping, timeless, ubiquitous, unacknowledged, unbounded, uncertain, unchanging, unclear, undesignated, undestined, undetermined, unidentified, unknown, unlimited, unnamed, unordered, unorganized, unplain, unrecognizable, unspecified, vague, veiled, weak, without a name

ROGET THESAURUS

undefined

Invisibility

N invisibility, invisibleness, nonappearance, imperceptibility, indistinctness, mystery, delitescence, concealment, latency, invisible, imperceptible, undiscernible, indiscernible, unapparent, non-apparent, out of sight, not in sight, a perte de vue, behind the scenes, behind the curtain, viewless, sightless, inconspicuous, unconspicuous, unseen &c (see), covert, eclipsed, under an eclipse, dim, mysterious, dark, obscure, confused, indistinct, indistinguishable, shadowy, indefinite, undefined, ill- defined, ill-marked, blurred, fuzzy, out of focus, misty, delitescent, hidden, obscured, covered, veiled (concealed), full many a flower is born to blush unseen.

Uncertainty

N uncertainty, incertitude, doubt, doubtfulness, dubiety, dubitation, dubitancy, dubitousness, hesitation, suspense, perplexity, embarrassment, dilemma, bewilderment, timidity, vacillation, diaporesis, indetermination, vagueness, haze, fog, obscurity, ambiguity, contingency, dependence, dependency, double contingency, possibility upon a possibility, open question, onus probandi, blind bargain, pig in a poke, leap in the dark, something or other, needle in a haystack, needle in a bottle of hay, roving commission, precariousness, fallibility, uncertain, casual, random, changeable, doubtful, dubious, indecisive, unsettled, undecided, undetermined, in suspense, open to discussion, controvertible, in question, vague, indeterminate, indefinite, ambiguous, equivocal, undefined, undefinable, confused, mystic, oracular, dazed, perplexing, enigmatic, paradoxical, apocryphal, problematical, hypothetical, experimental, unpredictable, unforeseeable (unknowable), fallible, questionable, precarious, slippery, ticklish, debatable, disputable, unreliable, untrustworthy, contingent, contingent on, dependent on, subject to, dependent on circumstances, occasional, provisional, unauthentic, unauthenticated, unauthoritative, unascertained, unconfirmed, undemonstrated, untold, uncounted, in a state of uncertainty, in a cloud, in a maze, bushed, off the track, ignorant, afraid to say, out of one's reckoning, astray, adrift, at sea, at fault, at a loss, at one's wit's end, at a nonplus, puzzled, lost, abroad, d_esorient_e, distracted, distraught, pendente lite, sub spe rati, Heaven knows, who can tell? who shall decide when doctors disagr.