Definition and pronunciation
promiscuous — adjective meaning indiscriminate or not selective; most commonly, having many sexual partners or engaging in non-exclusive sexual activity (often judgmental in tone).
Pronounced /prəˈmɪskjuəs/. Adverb: promiscuously. Noun: promiscuity.
Easy explanation
Promiscuous usually describes someone who has sex with many partners. The word can sound shaming, so many writers use neutral phrases like casual sex or multiple partners. Outside sexuality, it can just mean not selective (e.g., a “promiscuous eater”).
Part of speech and grammar
- Adjective: a promiscuous lifestyle; promiscuous mating; promiscuous borrowing of words.
- Comparatives: more promiscuous, most promiscuous.
- Derived forms: promiscuity (noun), promiscuously (adverb).
- Attributive vs predicative: promiscuous behavior / The design is promiscuous with plugins (nonsexual, “accepts many”).
Register and tone
Often loaded or moralizing, especially about sexuality. In health, education, or journalism, prefer behavior-based, neutral wording: casual sex; sex with multiple partners; non-exclusive dating.
Connection to sexuality
Yes. In common use, promiscuous refers to frequent or non-exclusive sexual partnering. Note that risk isn’t inherent—it depends on behavior (barriers, testing, PrEP/PEP, honest communication). The term can stigmatize, especially women and queer people.
Common collocations
sexually promiscuous, promiscuous behavior, promiscuous lifestyle, promiscuous kissing, promiscuous mixing/mating, promiscuous mode (computing), promiscuous binding (biochemistry), promiscuous borrowing (linguistics), promiscuous use of [X].
Idioms and set phrases
- promiscuous mode (networking): a device captures all traffic, not just what’s addressed to it.
- promiscuous binding/enzymes (biology): molecules that act on many substrates.
- promiscuous mixing (public health): extensive intermingling between groups.
These fixed terms are nonsexual and mean “accepts many inputs/partners.”
Prepositions and nuance
- promiscuous with [partners/antibiotics/ideas] — not selective in use or choice.
- promiscuous in [habits/mating] — within a sphere of behavior.
- promiscuous about [boundaries/credit] — lax or careless regarding something.
- promiscuous among/between [groups] — widespread mixing across groups.
- promiscuous use of [X] — over-broad application.
Word comparisons
- promiscuous vs casual — casual is neutral; promiscuous often judges.
- promiscuous vs non-monogamous — non-monogamous is structural (open/poly); not inherently frequent or indiscriminate.
- promiscuous vs unfaithful — unfaithful breaks an agreement; promiscuous says “many partners,” not necessarily cheating.
- promiscuous vs indiscriminate — general synonym outside sexuality.
- promiscuous vs active sex life — the latter is neutral and nonjudgmental.
Real-life examples
- The clinic avoided the word “promiscuous” and asked about number of partners and protection instead.
- Some species show promiscuous mating, while others pair-bond seasonally.
- The adapter is promiscuous with formats and accepts nearly any file type.
- Critics called the tabloid headline sexist for labeling her “promiscuous.”
- Network cards in promiscuous mode capture all packets on the wire.
Sample sentences
- The survey measures partners and practices rather than labeling anyone promiscuous.
- The script replaces the label with neutral wording: “She has casual, consensual relationships.”
- Fruit flies in the study displayed promiscuous mating behavior.
- Be precise: “promiscuous mode” in networking has nothing to do with sex.
- He was unfairly branded promiscuous despite consistent safer-sex habits.
Synonyms
indiscriminate, unselective, casual, non-exclusive, liberal, many-partner, carefree, rakish, licentious, wanton, fast, loose, debauched
Antonyms
selective, discerning, exclusive, monogamous, faithful, chaste, reserved, restrained, abstemious
Related terms
promiscuity, casual sex, multiple partners, sleep around, bed-hop, hookup, open relationship, consensual non-monogamy, swinging, polyamory, slut-shaming, stigma, safer sex, STI testing, PrEP, condoms, consent, boundaries
Notes and etiquette
- Prefer neutral, specific language in education and reporting.
- Separate consent and honesty (ethical issues) from number of partners (behavior).
- Avoid gendered double standards; apply the same language to everyone.
Sexopedia.co is an educational glossary of sexual and gender-related terms—helping you improve your English while deepening your understanding of identity, language, and self-expression.