13-letter words containing s, i, o, u
- infructuously — in an infructuous or unfruitful manner; fruitlessly
- ingeniousness — characterized by cleverness or originality of invention or construction: an ingenious machine.
- ingenuousness — free from reserve, restraint, or dissimulation; candid; sincere.
- inhomogeneous — lack of homogeneity.
- injudiciously — not judicious; showing lack of judgment; unwise; imprudent; indiscreet: an injudicious decision.
- injuriousness — The quality of being injurious.
- innocuousness — not harmful or injurious; harmless: an innocuous home remedy.
- inns of court — (in England) the four private unincorporated societies in London that function as a law school and have the exclusive privilege of calling candidates to the English bar
- inobtrusively — in an unobtrusive manner
- inodorousness — the quality of being inodorous
- inquisitional — Of or pertaining to an inquisition.
- inquisitioned — Simple past tense and past participle of inquisition.
- inquisitorial — of or relating to an inquisitor or inquisition.
- insectivorous — adapted to feeding on insects.
- insidiousness — intended to entrap or beguile: an insidious plan.
- insolubilized — Made insoluble.
- insolubleness — The quality or state of being insoluble.
- instantaneous — occurring, done, or completed in an instant: an instantaneous response.
- institutional — of, relating to, or established by institution.
- instructional — the act or practice of instructing or teaching; education.
- insubordinate — not submitting to authority; disobedient: an insubordinate soldier.
- insulin shock — a state of collapse caused by a decrease in blood sugar resulting from the administration of excessive insulin.
- insulinogenic — Promoting the production of insulin.
- insupportable — not endurable; unbearable; insufferable: insupportable pain.
- insupportably — In an insupportable manner.
- insurrections — Plural form of insurrection.
- insusurration — (obsolete) The act of whispering into something.
- interlocutors — a person who takes part in a conversation or dialogue.
- interosculant — Mutually touching or intersecting.
- interosculate — to interpenetrate; inosculate.
- interreligous — Between religions.
- interruptions — an act or instance of interrupting.
- intravenously — through or within a vein. Abbreviation: IV.
- introductions — Plural form of introduction.
- invidiousness — (rare) Malevolent provocation of dislike or resentment; the state or quality of being invidious.
- irreligiously — In an irreligious fashion.
- isle of youth — Isle of, an island in the Caribbean, a special municipality in S Cuba. 1182 sq. mi. (3060 sq. km).
- isoagglutinin — an agglutinin that can effect isoagglutination.
- isoamyl group — the univalent group C 5 H 11 .
- isochronously — In an isochronous manner.
- isospondylous — of, relating to, or belonging to the Isospondyli (or Clupeiformes), an order of soft-finned teleost fishes that includes the herring, salmon, trout, and pike
- isostructural — (of two substances) having the same crystal structure but not necessarily a similar chemical composition.
- issuing house — a financial institution that engages in finding capital for established companies or for private firms wishing to convert to public companies, by issuing shares on their behalf
- jejunostomies — Plural form of jejunostomy.
- john suckling — Sir John, 1609–42, English poet.
- joint custody — custody, as of a child whose parents are separated, in which two or more people share responsibility.
- joint honours — an honours university degree in which a student studies two separate subjects, as opposed to a single subject
- juan carlos i — King (Juan Carlos Alfonso Victor María de Borbón y Borbón) born 1938, Spanish monarch, born in Italy: king since 1975.
- judeo-spanish — Ladino (def 1).
- judiciousness — The state of being judicious.