slip of the tongue

CIDE DICTIONARY

slip of the tongue, n. 

 an unintentional utterance; a mistake in speaking.  [WordNet 1.5]

THESAURUS

slip of the tongue

balk, bevue, false move, false step, inadvertence, inadvertency, lapse, lapsus calami, lapsus linguae, loose thread, miscue, misstep, omission, oversight, slip, slipup, stumble, trip, wrong step

ROGET THESAURUS

slip of the tongue

Solecism

N solecism, bad grammar, false grammar, faulty grammar, slip of the pen, slip of the tongue, lapsus linguae, slipslop, bull, barbarism, impropriety, ungrammatical, incorrect, inaccurate, faulty, improper, incongruous, solecistic, solecistical.

Stammering

N stammering, inarticulateness, stammering, hesitation, impediment in one's speech, titubancy, traulism, whisper, lisp, drawl, tardiloquence, nasal tone, nasal accent, twang, falsetto, broken voice, broken accents, broken sentences, brogue, slip of the tongue, lapsus linouae, stammering, inarticulate, guttural, nasal, tremulous, affected, sotto voce.

Error

N error, fallacy, misconception, misapprehension, misstanding, misunderstanding, inexactness, laxity, misconstruction, miscomputation, non sequitur, mis-statement, mis-report, mumpsimus, mistake, miss, fault, blunder, quiproquo, cross purposes, oversight, misprint, erratum, corrigendum, slip, blot, flaw, loose thread, trip, stumble, botchery, slip of the tongue, slip of the lip, Freudian slip, slip of the pen, lapsus linguae, clerical error, bull, haplography, illusion, delusion, snare, false impression, false idea, bubble, self-decit, self-deception, mists of error, heresy, hallucination, false light, dream, fable, bias, misleading, erroneous, untrue, false, devoid of truth, fallacious, apocryphal, unreal, ungrounded, groundless, unsubstantial, heretical, unsound, illogical, inexact, unexact inaccurate, incorrect, indefinite, illusive, illusory, delusive, mock, ideal, spurious, deceitful, perverted, controvertible, unsustainable, unauthenticated, untrustworthy, exploded, refuted, discarded, in error, under an error, mistaken, tripping, out, out in one's reckoning, aberrant, beside the mark, wide of the mark, wide of the truth, way off, far off, astray, on a false scent, on the wrong scent, in the wrong box, outside the ballpark, at cross purposes, all in the wrong, all out, more or less, errare est humanum, mentis gratissimus error, on the dubious waves of error tost, to err is human, to forgive divine, you lie -- under a mistake.