promiscuous

Adjective

Synonyms: easy light loose sluttish wanton

WordNet 3.0

Adjective (2)

not selective of a single class or person“Clinton was criticized for his promiscuous solicitation of campaign money”
casual and unrestrained in sexual behavior“her easy virtue”“he was told to avoid loose (or light) women”“wanton behavior”Synonyms: easy light loose sluttish wanton

Webster's Dictionary (GCIDE)

Promiscuous \Pro*mis"cu*ous\, a. [L. promiscuus; pro before, in place of, for + miscere to mix. See Mix. ] [1913 Webster]

1.Consisting of individuals united in a body or mass without order; mingled; confused; undistinguished; as, a promiscuous crowd or mass. [1913 Webster]

A wild, where weeds and flowers promiscuous shoot.— Pope.[1913 Webster]

2.Distributed or applied without order or discrimination; not restricted to an individual; common; indiscriminate; as, promiscuous love or intercourse. [1913 Webster]