15-letter words containing o, n, a, s, i
- inconsiderately — In an inconsiderate manner.
- inconsideration — without due regard for the rights or feelings of others: It was inconsiderate of him to keep us waiting.
- inconsolability — not able to be comforted or consoled; disconsolate: She was inconsolable when her son died.
- indiscretionary — lack of discretion; imprudence.
- indomitableness — Quality of being indomitable.
- indoor baseball — softball played indoors.
- inefficaciously — Without efficacy or effect.
- inertial fusion — a type of nuclear fusion in which the inertia of matter enables it to fuse by impact, as by pulses of laser radiation or high-energy charged particles, rather than by high temperature
- infants' school — kindergarten.
- informativeness — giving information; instructive: an informative book.
- inoperativeness — The state or condition of being inoperative; nonfunction.
- inquisitorially — In an inquisitorial manner.
- inspection arms — a position in military drill in which the missile chamber of a weapon is open for inspection.
- inspirationally — imparting inspiration.
- instantaneously — occurring, done, or completed in an instant: an instantaneous response.
- institutionally — of, relating to, or established by institution.
- instrumentation — the arranging of music for instruments, especially for an orchestra.
- insubordinately — In an insubordinate manner.
- insubordination — the quality or condition of being insubordinate, or of being disobedient to authority; defiance: The employee was fired for insubordination.
- insurrectionary — of, relating to, or of the nature of insurrection.
- integrationists — Plural form of integrationist.
- intensification — to make intense or more intense.
- intercomparison — mutual comparison
- interdivisional — existing or occurring between divisions, esp the divisions of an organization
- interfoliaceous — situated between leaves, especially opposite leaves.
- interior salish — in Canada, a division of the peoples who speak Salish languages
- interiorscaping — The design, installation, and maintenance of interiorscapes.
- internalisation — (chiefly, British) alternative spelling of internalization.
- interparoxysmal — occurring in the period or periods between paroxysms.
- interpersonally — of or pertaining to the relations between persons: He has strong interpersonal skills.
- interpretations — Plural form of interpretation.
- interrogatories — conveying or expressing a question; interrogative.
- interscholastic — between schools, or representative of different schools, especially secondary schools: interscholastic athletics.
- intervalometers — Plural form of intervalometer.
- intervisitation — the act of visiting.
- intolerableness — The state of being intolerable or insufferable.
- intrazonal soil — a soil that has a well-developed profile determined by relief, parent material, age, etc
- introspectional — Of or relating to introspection.
- inversion layer — a layer of the atmosphere in which there is a temperature inversion, with the layer tending to prevent the air below it from rising, thus trapping any pollutants that are present.
- inverted commas — Inverted commas are punctuation marks that are used in writing to show where speech or a quotation begins and ends. They are usually written or printed as ' ' or " ". Inverted commas are also sometimes used around the titles of books, plays, or songs, or around a word or phrase that is being discussed.
- investigational — Of, or relating to investigating, or to an investigation.
- involuntariness — The state of being involuntary; unwillingness; automatism.
- ionospherically — by the ionosphere
- ironstone china — a tough durable earthenware
- irrationalistic — Of or relating to irrationalism.
- irrationalities — Plural form of irrationality.
- irrevocableness — Quality of being irrevocable.
- island grey fox — a similar and related animal, U. littoralis, inhabiting islands off North America
- islands council — (in Scotland since 1975) any of the three divisions (Orkney, Shetland, and the Western Isles) into which the Scottish islands are divided for purposes of local government
- isoimmunization — the development of isoantibodies within an individual in order to protect against antigens derived from a different member of the same species