noun.
A wandering beyond proper bounds; an excursion or a sally out of the usual way, course, or limit.
noun.
An extravagant action, or such actions collectively; a going beyond proper limits in action, conduct, or feeling; the overdoing of something; specifically, lavish outlay or expenditure.
noun.
The quality of being extravagant: excessiveness or unreasonableness in amount or degree; exorbitance: as, extravagance of expenditure, demands, conduct, passion, etc.
noun.
Synonyms Wildness, irregularity, absurdity, excess, exorbitance, unreasonableness, profusion, waste, dissipation, bombast.