[ca.su.al] adj [ME, fr. MF & LL; MF casuel, fr. LL casualis, fr. L casus fall, chance--more at case] (14c) 1: subject to, resulting from, or occurring by chance
2. a: occurring without regularity: occasional b: employed for irregular periods 3 a: feeling or showing little concern: nonchalant b (1): informal, natural (2): designed for informal use syn see accidental, random -- ca.su.al.ly adv -- ca.su.al.ness n
[2]casual n (ca. 1852) 1: a casual or migratory worker
2: an officer or enlisted man awaiting assignment or transportation to a unit