gra·tu·i·tous / grəˈt(y)oōitəs/ • adj. 1. uncalled for; lacking good reason; unwarranted: gratuitous violence.2. given or done free of charge: solicitors provide a form of gratuitous legal advice.DERIVATIVES: gra·tu·i·tous·ly adv.gra·tu·i·tous·ness n.

GRATUITOUS

Bestowed or granted without consideration or exchange for something of value.

The term gratuitous is applied to deeds, bailments, and other contractual agreements.

A gratuity is something given by someone who has no obligation to give and can be used in reference to a bribe or tip.