[pro.mis.cu.ous] adj [L promiscuus, fr. pro- forth + miscere to mix--more at pro-, mix] (1603) 1: composed of all sorts of persons or things
2: not restricted to one class, sort, or person: indiscriminate "education ... cheapened through the ~ distribution of diplomas --Norman Cousins"
3: not restricted to one sexual partner
4: casual, irregular "~ eating habits" -- pro.mis.cu.ous.ly adv -- pro.mis.cu.ous.ness n