13-letter words containing u, s, a
- indian summer — a period of mild, dry weather, usually accompanied by a hazy atmosphere, occurring usually in late October or early November and following a period of colder weather.
- indissuadable — incapable of being dissuaded
- indissuadably — in an indissuadable way
- indisturbance — Freedom from disturbance; calmness; repose.
- individualise — (British spelling) alternative spelling of individualize.
- individualism — a social theory advocating the liberty, rights, or independent action of the individual.
- individualist — a person who shows great independence or individuality in thought or action.
- industrialise — Non-Oxford British standard spelling of industrialize.
- industrialism — an economic organization of society built largely on mechanized industry rather than agriculture, craftsmanship, or commerce.
- industrialist — a person who owns or is involved in the management of an industrial enterprise.
- industrialize — to introduce industry into (an area) on a large scale.
- inefficacious — not able to produce the desired effect; ineffective.
- inexhaustible — not exhaustible; incapable of being depleted: an inexhaustible supply.
- inexhaustibly — not exhaustible; incapable of being depleted: an inexhaustible supply.
- infrascapular — (anatomy) Beneath the scapula.
- inner sanctum — sanctum (def 2).
- inquisitional — Of or pertaining to an inquisition.
- inquisitorial — of or relating to an inquisitor or inquisition.
- insinuatingly — tending to instill doubts, distrust, etc.; suggestive: an insinuating letter.
- instantaneous — occurring, done, or completed in an instant: an instantaneous response.
- instinctually — of, relating to, or of the nature of instinct.
- institutional — of, relating to, or established by institution.
- instructional — the act or practice of instructing or teaching; education.
- instrumentals — Plural form of instrumental.
- insubordinate — not submitting to authority; disobedient: an insubordinate soldier.
- insubstantial — not substantial or real; lacking substance: an insubstantial world of dreams.
- insupportable — not endurable; unbearable; insufferable: insupportable pain.
- insupportably — In an insupportable manner.
- insusurration — (obsolete) The act of whispering into something.
- intellectuals — Plural form of intellectual.
- inter-assured — to make (a future event) sure; ensure: This contract assures the company's profit this month.
- intermuscular — of or relating to muscle or the muscles: muscular strain.
- interosculant — Mutually touching or intersecting.
- interosculate — to interpenetrate; inosculate.
- interscapular — between the scapulae or shoulder blades.
- intersexually — In an intersexual way.
- intracapsular — Within a capsule.
- intramuscular — located or occurring within a muscle.
- intrapreneurs — Plural form of intrapreneur.
- intravascular — within the blood vessels.
- intravenously — through or within a vein. Abbreviation: IV.
- ipecac spurge — a spurge, Euphorbia ipecacuanhae, of the eastern U.S.
- irregularness — Quality of being irregular.
- isoagglutinin — an agglutinin that can effect isoagglutination.
- isoamyl group — the univalent group C 5 H 11 .
- isostructural — (of two substances) having the same crystal structure but not necessarily a similar chemical composition.
- james douglas — Sir James ("the Black Douglas") 1286–1330, Scottish military leader.
- january sales — sales held after Christmas to encourage customers back to the shops
- japanese plum — a small tree, Prunus salicina, native to China, bearing edible yellowish fruit.
- jerry sussman — Gerald Sussman