15-letter words containing t, i, o, u
- turquoise green — a light bluish green.
- tutorial system — a system of education, especially in some colleges, in which instruction is given personally by tutors, who also act as general advisers of a small group of students in their charge.
- two-thirds rule — a former rule in the Democratic Party, effective 1832–1936, requiring a vote of at least two thirds of its national convention delegates to nominate a presidential and vice-presidential candidate.
- uinta mountains — a mountain range in NE Utah: part of the Rocky Mountains. Highest peak: Kings Peak, 4123 m (13 528 ft)
- ulterior motive — secret or underlying aim
- ultra-modernist — very advanced in ideas, design, or techniques.
- ultra-patriotic — of, like, suitable for, or characteristic of a patriot.
- ultra-religious — of, relating to, or concerned with religion: a religious holiday.
- ultracommercial — concerned with nothing but profit
- ultraconvenient — extremely convenient
- ultrademocratic — (in the US) characteristic of a staunch member or supporter of the Democratic Party and its agenda
- ultrafastidious — extremely fastidious
- ultrafiltration — Physical Chemistry. a filter for purifying sols, having a membrane with pores sufficiently small to prevent the passage of the suspended particles.
- ultramicrofiche — ultrafiche.
- ultramicrometer — a micrometer calibrated to a very fine scale and capable of measuring extremely small magnitudes.
- ultramicroscope — an instrument that uses scattering phenomena to detect the position of objects too small to be seen by an ordinary microscope.
- ultramicroscopy — the use of the ultramicroscope.
- un-coincidental — happening by or resulting from coincidence; by chance: a coincidental meeting.
- un-fortuitously — happening or produced by chance; accidental: a fortuitous encounter.
- un-romanticized — to make romantic; invest with a romantic character: Many people romanticize the role of an editor.
- unaccommodating — easy to deal with; eager to help or please; obliging.
- unaffordability — that can be afforded; believed to be within one's financial means: attractive new cars at affordable prices.
- unapostolically — in an unapostalic manner
- unary operation — an operation in a mathematical system by which one element is used to yield a single result, as squaring or taking the square root.
- unauthoritative — having due authority; having the sanction or weight of authority: an authoritative opinion.
- uncategorizable — not able to be categorized or placed into a category
- uncommunicating — to impart knowledge of; make known: to communicate information; to communicate one's happiness.
- uncommunicative — not inclined to talk or disclose information; reserved; taciturn.
- uncompassionate — having or showing compassion: a compassionate person; a compassionate letter.
- uncomplaisantly — in an uncomplaisant manner
- uncomplimentary — of the nature of, conveying, or expressing a compliment, often one that is politely flattering: a complimentary remark.
- unconditionally — not limited by conditions; absolute: an unconditional promise.
- unconscientious — governed by conscience; controlled by or done according to one's inner sense of what is right; principled: She's a conscientious judge, who does not let personal prejudices influence her decisions.
- unconsolidation — an act or instance of consolidating; the state of being consolidated; unification: consolidation of companies.
- unconstrainable — unable to be confined
- unconstrainedly — in an unconfined manner
- uncontroversial — of, relating to, or characteristic of controversy, or prolonged public dispute, debate, or contention; polemical: a controversial book.
- uncooperatively — in an uncooperative or unhelpful manner
- uncopyrightable — not able to be copyrighted
- undemonstrative — not given to open exhibition or expression of emotion, especially of affection.
- under-education — to educate too little or poorly.
- underestimation — to estimate at too low a value, rate, or the like.
- underpopulation — having a population lower than is normal or desirable.
- underproduction — production that is less than normal or than is required by the demand.
- undisappointing — not disappointing
- unexceptionable — not offering any basis for exception or objection; beyond criticism: an unexceptionable record of achievement.
- unextraordinary — beyond what is usual, ordinary, regular, or established: extraordinary costs.
- unidiomatically — in a way that is not idiomatic
- unindoctrinated — to instruct in a doctrine, principle, ideology, etc., especially to imbue with a specific partisan or biased belief or point of view.
- uninformatively — in an uninformative manner