13-letter words containing e, r, u, b
- ultra-liberal — extremely liberal, especially in politics.
- ultrareliable — extremely reliable
- ultrawideband — a transmission technique using a very wide spectrum of frequencies that enables high-speed transfer of data
- umbelliferous — bearing an umbel or umbels.
- umbrella bird — any of several large trogons of the genus Cephalopterus, of Central and South America, as C. ornatus, having an umbrellalike crest above the head.
- umbrella leaf — a rare, large-leaved perennial herb, Diphylleia cymosa, of the southeastern U.S., having white flowers and small, blue berries.
- umbrella palm — an Australian feather palm, Hedyscepe canterburyana, characterized by the umbrellalike manner of growth of its leaves.
- umbrella pine — a Japanese evergreen tree, Sciadopitys verticillata, having linear leaves growing in umbrellalike whorls, cultivated as an ornamental.
- umbrella step — (in the game of giant steps) a step executed by extending one foot forward and whirling on the heel.
- umbrella tent — a small tent with a metal frame consisting of ribs that radiate from a single supporting pole.
- umbrella tree — an American magnolia, Magnolia tripetala, having large leaves in umbrellalike clusters.
- un-personable — of pleasing personal appearance; handsome or comely; attractive.
- un-releasable — to free from confinement, bondage, obligation, pain, etc.; let go: to release a prisoner; to release someone from a debt.
- un-vulnerable — capable of or susceptible to being wounded or hurt, as by a weapon: a vulnerable part of the body.
- unabbreviated — shortened; made briefer: The rain led to an abbreviated picnic.
- unappreciable — sufficient to be readily perceived or estimated; considerable: There is an appreciable difference between socialism and communism.
- unbelligerent — not belligerent or hostile
- unbowdlerized — to expurgate (a written work) by removing or modifying passages considered vulgar or objectionable.
- unciform bone — a small bone of the wrist
- uncomfortable — causing discomfort or distress; painful; irritating.
- unconformable — not conformable; not conforming.
- unconquerable — to acquire by force of arms; win in war: to conquer a foreign land.
- unconquerably — in an invincible manner
- unconversable — inappropriate for conversation
- unconvertible — capable of being converted.
- uncorrectable — not able to be fixed
- undeliverable — capable of delivery.
- underbudgeted — furnished with an insufficient budget; not having sufficient funds made available.
- underclubbing — the action of hitting with a club resulting in insufficient distance
- undescribable — to tell or depict in written or spoken words; give an account of: He described the accident very carefully.
- undiscernable — capable of being discerned; distinguishable.
- undiscernible — capable of being discerned; distinguishable.
- undistributed — (in distinctive feature analysis) characterized by relatively extensive contact or constriction between the articulating organs, as the (sh) in show in contrast to the (s) in so.
- undisturbedly — in an undisturbed manner
- unembarrassed — to cause confusion and shame to; make uncomfortably self-conscious; disconcert; abash: His bad table manners embarrassed her.
- unenforceable — to put or keep in force; compel obedience to: to enforce a rule; Traffic laws will be strictly enforced.
- unextractable — to get, pull, or draw out, usually with special effort, skill, or force: to extract a tooth.
- unforeseeable — to have prescience of; to know in advance; foreknow.
- unforeseeably — to have prescience of; to know in advance; foreknow.
- unforgettable — impossible to forget; indelibly impressed on the memory: scenes of unforgettable beauty.
- unforgettably — impossible to forget; indelibly impressed on the memory: scenes of unforgettable beauty.
- unimpressible — not capable of being or willing to be impressed
- unneighboured — having no neighbour or neighbours
- unneighbourly — unfriendly and unhelpful
- unobliterated — to blot out or render undecipherable (writing, marks, etc.); efface.
- unobstructive — to block or close up with an obstacle; make difficult to pass: Debris obstructed the road.
- unobtrusively — not obtrusive; inconspicuous, unassertive, or reticent.
- unperceivable — imperceptible
- unperceivably — imperceptibly
- unperceptible — capable of being perceived; recognizable; appreciable: a perceptible change in his behavior.