Wrong in e.g. opinion or judgment:
— A mistaken belief.
— Mistaken identity.

synonym: misguided.

Roget 547: credulous etc. 486; mistaken etc. (error) 495.   

Arising from error:
— A mistaken view of the situation.

synonym: false.

Roget 495: erroneous, untrue, false, devoid of truth, fallacious, apocryphal, unreal, ungrounded, groundless; unsubstantial etc. 4; heretical etc. (heterodox) 984; unsound; illogical etc. 477.    inexact, unexact inaccurate^†, incorrect; indefinite etc. (uncertain) 475.    illusive, illusory; delusive; mock, ideal etc. (imaginary) 515; spurious etc. 545; deceitful etc. 544; perverted.    controvertible, unsustainable; unauthenticated, untrustworthy.    exploded, refuted; discarded.    in error, under an error etc. n.; mistaken etc. v.; tripping etc. v.; out, out in one's reckoning; aberrant; beside the mark, wide of the mark, wide of the truth, way off, far off; astray etc. (at fault) 475; on a false scent, on the wrong scent; in the wrong box, outside the ballpark; at cross purposes, all in the wrong; all out.    ... show more

Polish: mylny

A wrong action attributable to bad judgment or ignorance or inattention:
— He made a bad mistake.

synonyms: error, fault.

Roget 495: error, fallacy; misconception, misapprehension, misstanding^†, misunderstanding; inexactness etc. adj.; laxity; misconstruction etc. (misinterpretation) 523; miscomputation etc. (misjudgment) 481; non sequitur etc. 477; mis-statement, mis-report; mumpsimus^†.    mistake; miss, fault, blunder, quiproquo, cross purposes, oversight, misprint, erratum, corrigendum, slip, blot, flaw, loose thread; trip, stumble etc. (failure) 732; botchery etc. (want of skill) 699^†; slip of the tongue, slip of the lip, Freudian slip; slip of the pen; lapsus linguae [Lat.], clerical error; bull etc. (absurdity) 497; haplography^†.    illusion, delusion; snare; false impression, false idea; bubble; self-decit, self-deception; mists of error.    heresy etc. (heterodoxy) 984; hallucination etc. (insanity) 503; false light etc. (fallacy of vision) 443; dream etc. (fancy) 515; fable etc. (untruth) 546; bias etc. (misjudgment) 481; misleading etc. v.. ... show more

Dutch: abuis, afdwaling, feil, fout, lapsus, onjuistheid, vergissing, verwarring
Polish: pomylenie się, potknięcie się, omylenie się

An understanding of something that is not correct:
— He wasn't going to admit his mistake.
— Make no mistake about his intentions.

synonyms: misapprehension, misunderstanding.

Roget 523: misinterpretation, misapprehension, misunderstanding, misacceptation^†, misconstruction, misapplication; catachresis^†; eisegesis^†; cross-reading, cross-purposes; mistake etc. 495.    misrepresentation, perversion, exaggeration etc. 549; false coloring, false construction; abuse of terms; parody, travesty; falsification etc. (lying) 544.    ... show more

Dutch: misvatting, beoordelingsfout, malentendu, misverstand
Polish: omyłka, kiks, błąd, pomyłka

Part of a statement that is not correct.

synonym: error.

Identify incorrectly:
— Don't mistake her for her twin sister.

synonym: misidentify.

Roget 699: be unskillful etc. adj.; not see an inch beyond one's nose; blunder, bungle, boggle, fumble, botch, bitch, flounder, stumble, trip; hobble etc. 275; put one's foot in it; make a mess of, make hash of, make sad work of; overshoot the mark.    play tricks with, play Puck, mismanage, misconduct, misdirect, misapply, missend.    stultify oneself, make a fool of oneself, commit oneself; act foolishly; play the fool; put oneself out of court; lose control, lose control of oneself, lose one's head, lose one's cunning.    begin at the wrong end; do things by halves etc. (not complete) 730; make two bites of a cherry; play at cross purposes; strain at a gnat and swallow a camel etc. (caprice) 608; put the cart before the horse; lock the stable door when the horse is stolen etc. (too late) 135.    not know what one is about, not know one's own interest, not know on which side one's bread is buttered; stand in one's own light, quarrel with one's bread and butter, throw a stone in one's own garden, kill the goose which lays the golden eggs, pay dear for one's whistle, cut one's own throat, bum one's fingers; knock one's head against a stone wall, beat one's head against a stone wall; fall into a trap, catch a Tartar, bring the house about one's ears; have too many eggs in one basket (imprudent) 863, have too many irons in the fire.    mistake etc. 495; take the shadow for the substance etc. (credulity) 486; bark up the wrong tree; be in the wrong box, aim at a pigeon and kill a crow; take the wrong pig by the tail, get the wrong pig by the tail, get the wrong sow by the ear, get the dirty end of the stick; put the saddle on the wrong horse, put a square peg into a round hole, put new wine into old bottles.    cut blocks with a razor; hold a farthing candle to the sun etc. (useless) 645; fight with a shadow, grasp at a shadow; catch at straws, lean on a broken reed, reckon without one's host, pursue a wild goose chase; go on a fool's goose chase, sleeveless errand; go further and fare worse; lose one's way, miss one's way; fail etc. 732.    ... show more

Roget 523: misinterpret, misapprehend, misunderstand, misconceive, misspell, mistranslate, misconstrue, misapply; mistake etc. 495.    misrepresent, pervert; explain wrongly, misstate; garble etc. (falsify) 544; distort, detort^†; travesty, play upon words; stretch the sense, strain the sense, stretch the meaning, strain the meaning, wrest the sense, wrest the meaning; explain away; put a bad construction on, put a false construction on; give a false coloring.    be at cross purposes, play at cross purposes.    ... show more

To make a mistake or be incorrect.

synonyms: err, slip.

Roget 495: be erroneous etc. adj.. cause error; mislead, misguide; lead astray, lead into error; beguile, misinform etc. (misteach) 538^†; delude; give a false impression, give a false idea; falsify, misstate; deceive etc. 545; lie etc. 544.    err; be in error etc. adj., be mistaken etc. v.; be deceived etc. (duped) 547; mistake, receive a false impression, deceive oneself; fall into error, lie under error, labor under an error etc. n.; be in the wrong, blunder; misapprehend, misconceive, misunderstand, misreckon, miscount, miscalculate etc. (misjudge) 481.    play at cross purposes, be at cross purposes etc. (misinterpret) 523.    trip, stumble; lose oneself etc. (uncertainty) 475; go astray; fail etc. 732; be in the wrong box; take the wrong sow by the ear etc. (mismanage) 699; put the saddle on the wrong horse; reckon without one's host; take the shadow for the substance etc. (credulity) 486; dream etc. (imagine) 515.    ... show more

Dutch: in de fout gaan, vergissing, een fout maken, fout, maken, dwalen, zich vergissen, vergissen