Noun
The state or quality of being infelicitous; unhappiness; misery; wretchedness; misfortune; want of suitableness or appropriateness.
That (as an act, word, expression, etc.) which is infelicitous; as, infelicities of speech.
Source: Webster's dictionaryInfelicity is an ill to which all acts are heir which have the general character of ritual or ceremonial, all conventional acts. J. L. Austin