Cas"u*al (?), a. [OE. casuel, F. casuel, fr. L. casualis, fr. casus fall, accident, fr. cadere to fall. See Case.] 1. Happening or coming to pass without design, and without being foreseen or expected; accidental; fortuitous; coming by chance.

Casual breaks, in the general system.
W. Irving.

2. Coming without regularity; occasional; incidental; as, casual expenses.

A constant habit, rather than a casual gesture.

Syn. -- Accidental; fortutious; incidental; occasional; contingent; unforeseen. See Accidental.

Cas"u*al, n. One who receives relief for a night in a parish to which he does not belong; a vagrant.