12-letter words containing a, o, u, i
- ungraciously — in an ungracious manner
- ungratuitous — given, done, bestowed, or obtained without charge or payment; free; voluntary.
- unharmonious — marked by agreement in feeling, attitude, or action: a harmonious group.
- unharmonized — to bring into harmony, accord, or agreement: to harmonize one's views with the new situation.
- unheroically — in an unheroic manner
- unhistorical — of, pertaining to, treating, or characteristic of history or past events: historical records; historical research.
- unhospitable — not hospitable
- unifactorial — of or relating to a single gene.
- unifoliolate — compound in structure yet having only one leaflet, as the orange.
- unimolecular — of or involving only one molecular entity
- unimportance — a lack of importance
- uninnovative — tending to innovate, or introduce something new or different; characterized by innovation.
- uninoculated — to implant (a disease agent or antigen) in a person, animal, or plant to produce a disease for study or to stimulate disease resistance.
- unionization — to form into a union.
- unipotential — Electricity, Electronics. having uniform electric potential throughout, as a hot cathode (unipotential cathode) indirectly heated by a separate heater circuit so that there is no lateral change of voltage across the cathode due to resistance to a heating current.
- unironically — pertaining to, of the nature of, exhibiting, or characterized by irony or mockery: an ironical compliment; an ironical smile.
- unloquacious — talking or tending to talk much or freely; talkative; chattering; babbling; garrulous: a loquacious dinner guest.
- unmethodical — characterized by lack of method or disorderliness
- unmiraculous — not caused by a miracle
- unmodifiable — incapable of being modified
- unmoralising — not moralising
- unmoralizing — not moralizing
- unmotivating — to provide with a motive, or a cause or reason to act; incite; impel.
- unnegotiable — capable of being negotiated: a negotiable salary demand.
- unnegotiated — to deal or bargain with another or others, as in the preparation of a treaty or contract or in preliminaries to a business deal.
- unnormalized — to make normal.
- unnoticeable — attracting notice or attention; capable of being noticed: a noticeable lack of interest.
- unnoticeably — attracting notice or attention; capable of being noticed: a noticeable lack of interest.
- unobligatory — required as a matter of obligation; mandatory: A reply is desirable but not obligatory.
- unobtainable — to come into possession of; get, acquire, or procure, as through an effort or by a request: to obtain permission; to obtain a better income.
- unoriginated — not originated
- unpassionate — having, compelled by, or ruled by intense emotion or strong feeling; fervid: a passionate advocate of socialism.
- unpatronized — having few or no patrons
- unpavilioned — not provided with a pavilion
- unpoetically — in an unpoetic manner
- unpolishable — incapable of being made smooth or shiny
- unproclaimed — to announce or declare in an official or formal manner: to proclaim war.
- unprofitable — being without profit; not showing or turning a profit: a series of unprofitable ventures.
- unreciprocal — given or felt by each toward the other; mutual: reciprocal respect.
- unrhetorical — not rhetorical; literal; plainspoken
- unsailorlike — not befitting a sailor
- unsalubrious — favorable to or promoting health; healthful: salubrious air.
- unsanctioned — authoritative permission or approval, as for an action.
- unsaponified — to convert (a fat) into soap by treating with an alkali.
- unsaturation — not saturated; having the power to dissolve still more of a substance.
- unsocialized — to make social; make fit for life in companionship with others.
- unstationary — standing still; not moving.
- up and doing — busy; active
- uproariously — characterized by or in a state of uproar; tumultuous.
- uranic oxide — uranium dioxide.