Noun
The quality of being improper; unfitness or unsuitableness to character, time place, or circumstances; as, impropriety of behavior or manners.
That which is improper; an unsuitable or improper act, or an inaccurate use of language.
Source: Webster's dictionaryImpropriety is the soul of wit. W. Somerset Maugham
The important thing was that I had never behaved inappropriately toward any woman, and I had no intention of letting my enemies hang that age-old charge of sexual impropriety around my neck. Those who wished only to exploit my past failings, not forgive them, would get no help from me. Clarence Thomas
Woman is fine for her own satisfaction alone. No man will admire her the more, no woman will like her the better for it. Neatness and fashion are enough for the former, and a something of shabbiness or impropriety will be most endearing to the latter. Jane Austen
I am oppressed with a sense of the impropriety of uttering words on this occasion. James A. Garfield
An uplifting sense of purpose is more than an impetus for individual accomplishment, it is also a necessary insurance policy against expediency and impropriety. Gary Hamel
I value my reputation. I work hard to avoid even the appearance of impropriety. Richard Hanna