Impropriety

n.	1.	The quality of being improper; unfitness or unsuitableness to character, time place, or circumstances; as, impropriety of behavior or manners.
	2.	That which is improper; an unsuitable or improper act, or an inaccurate use of language. But every language has likewise its improprieties and absurdities. - Johnson. Many gross improprieties, however authorized by practice, ought to be discarded. - Swift.

Noun	1.	impropriety - an improper demeanor Synonyms: improperness Antonyms: correctitude, properness, propriety - correct or appropriate behavior
	2.	impropriety - an indecent or improper act Synonyms: indecency
	3.	impropriety - an act of undue intimacy Synonyms: indecorum, liberty, familiarity

Babbittry, Gothicism, aberrance, aberrancy, abnormality, anomaly, atrocity, bad taste, badness, barbarism, barbarousness, blunder, bombasticness, bourgeois taste, breach, cacology, cacophony, camp, campiness, clumsiness, coarseness, colloquialism, corruption, crime, crime against humanity, criminality, crudeness, cumbrousness, deadly sin, delinquency, dereliction, deviance, deviancy, discourtesy, disentitlement, disorder, disorderliness, disorderly conduct, disruption, disruptiveness, dysphemism, empty claim, empty title, enormity, erroneousness, error, evil, excess, failure, false claim, falseness, falsity, fault, faux pas, felony, frowned-upon behavior, gaffe, gaucherie, genocide, gracelessness, grossness, guilty act, harshness, heaviness, heavy sin, high camp, hooliganism, horseplay, ill-balanced sentences, illegality, immodesty, immorality, imprecision, improperness, impurity, inaccuracy, inaccurateness, inadmissibility, inapplicability, inappositeness, inappropriateness, inaptitude, inaptness, inauspiciousness, incompatibility, inconcinnity, incongruity, incongruousness, inconvenience, incorrectness, indecency, indecorousness, indecorum, indelicacy, indiscreetness, indiscretion, inelegance, inelegancy, inequitableness, inequity, inexactitude, inexactness, inexpedience, inexpiable sin, infelicity, infraction, iniquitousness, iniquity, injury, injustice, inopportuneness, inopportunity, intempestivity, interruption, intrusion, invalid claim, irregularity, irrelevance, irrelevancy, kitsch, lack of claim, lack of finish, lack of polish, lapse, lasciviousness, lateness, leadenness, lewdness, localism, low camp, maladjustment, malefaction, malfeasance, malum, mesalliance, minor wrong, misalliance, misbehavior, misconduct, misdeed, misdemeanor, misdoing, misfeasance, misjoinder, misjoining, mismatch, mistake, mortal sin, naughtiness, no claim, nonfeasance, nonsanctioned behavior, offense, omission, outrage, peccadillo, peccancy, philistinism, pompousness, ponderousness, poor diction, poor taste, pop, pop culture, prematurity, roughhouse, roughness, rowdiness, rowdyism, rudeness, ruffianism, sesquipedalianism, sesquipedality, sin, sin of commission, sin of omission, sinful act, sinfulness, slang, slip, slipshod construction, stiltedness, suggestiveness, taboo word, tastelessness, tort, transgression, trespass, trip, turgidity, unaestheticism, unaestheticness, unbecomingness, unchastity, uncongeniality, uncouthness, undeservedness, undeservingness, undueness, unentitledness, uneuphoniousness, unfavorableness, unfitness, unfittingness, unfortunateness, ungracefulness, unjustness, unlawfulness, unmeetness, unmeritedness, unpropitiousness, unrefinement, unrighteousness, unripeness, unseasonableness, unseemliness, unsuitability, unsuitableness, untimeliness, unutterable sin, unwieldiness, vandalism, venial sin, vice, violation, vulgar taste, vulgarism, vulgarity, vulgarness, wickedness, wrong, wrongdoing, wrongfulness, wrongness