13-letter words containing a, l, u, n, i
- ultrarational — extremely rational
- ultraromantic — extremely romantic
- ultraviolence — acts of extreme violence, esp those shown on television or film
- ultrawideband — a transmission technique using a very wide spectrum of frequencies that enables high-speed transfer of data
- umbrella pine — a Japanese evergreen tree, Sciadopitys verticillata, having linear leaves growing in umbrellalike whorls, cultivated as an ornamental.
- un-actionable — furnishing ground for a lawsuit.
- un-analytical — pertaining to or proceeding by analysis (opposed to synthetic).
- unambiguously — plainly, clearly
- unambitiously — in an unambitious manner
- unamiableness — the state or quality of being unamiable or ill-tempered
- unapologizing — not apologetic; not willing to apologize or to make an apology
- unappealingly — in an unappealing manner
- unappreciable — sufficient to be readily perceived or estimated; considerable: There is an appreciable difference between socialism and communism.
- unapprovingly — in an unapproving manner
- unarticulated — not articulated
- unassertively — in an unassertive manner
- unassimilable — capable of being assimilated.
- unassimilated — to take in and incorporate as one's own; absorb: He assimilated many new experiences on his European trip.
- unbeautifully — in a unbeautiful or unattractive manner
- unbenignantly — kind, especially to inferiors; gracious: a benignant sovereign.
- uncalculating — not calculating or scheming; guileless
- uncapitalized — to write or print in capital letters letters or with an initial capital letter.
- uncategorical — without exceptions or conditions; absolute; unqualified and unconditional: a categorical denial.
- uncentralized — to draw to or gather about a center.
- unchallenging — not challenging or difficult; not providing a challenge; easy
- unchastisable — not deserving to be chastised; beyond reproach
- unchlorinated — not chlorinated; not treated with chlorine
- uncleanliness — unclean.
- uncomplaining — to express dissatisfaction, pain, uneasiness, censure, resentment, or grief; find fault: He complained constantly about the noise in the corridor.
- uncomplaisant — not eager to please; not compliant or obliging
- uncomplicated — to make complex, intricate, involved, or difficult: His recovery from the operation was complicated by an allergic reaction.
- unconceivable — inconceivable.
- unconceivably — inconceivably
- unconditional — not limited by conditions; absolute: an unconditional promise.
- uncontainable — to hold or include within its volume or area: This glass contains water. This paddock contains our best horses.
- uncustomarily — according to or depending on custom; usual; habitual.
- undeliverable — capable of delivery.
- underinflated — lacking sufficient air pressure
- undescribable — to tell or depict in written or spoken words; give an account of: He described the accident very carefully.
- undeviatingly — to turn aside, as from a route, way, course, etc.
- undiagnosable — unable to be diagnosed
- undialectical — not dialectical; not resolving views; dogmatic
- undirectional — of, relating to, or indicating direction in space.
- undiscernable — capable of being discerned; distinguishable.
- undiscussable — to consider or examine by argument, comment, etc.; talk over or write about, especially to explore solutions; debate: to discuss the proposed law on taxes.
- undisguisable — to change the appearance or guise of so as to conceal identity or mislead, as by means of deceptive garb: The king was disguised as a peasant.
- undulationist — a subscriber to the theory that light is transmitted as waves
- unemotionally — without the expression of strong feeling
- unequivocally — in a way that is clear and unambiguous: The theme is unequivocally religious.
- unestablished — not established.