13-letter words containing u, n, a, f, l
- underinflated — lacking sufficient air pressure
- unenforceable — to put or keep in force; compel obedience to: to enforce a rule; Traffic laws will be strictly enforced.
- unfacilitated — to make easier or less difficult; help forward (an action, a process, etc.): Careful planning facilitates any kind of work.
- unfalsifiable — to make false or incorrect, especially so as to deceive: to falsify income-tax reports.
- unfalteringly — to hesitate or waver in action, purpose, intent, etc.; give way: Her courage did not falter at the prospect of hardship.
- unfamiliarity — not familiar; not acquainted with or conversant about: to be unfamiliar with a subject.
- unfashionable — observant of or conforming to the fashion; stylish: a fashionable young woman.
- unfashionably — in an unfashionable manner
- 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.
- unfortunately — suffering from bad luck: an unfortunate person.
- unfulfillable — not able to be fulfilled
- uniflagellate — having only one flagellum.
- uninflammable — (of materials and substances) not liable to catch fire, not flammable
- uninfluential — having or exerting influence, especially great influence: three influential educators.
- unjustifiable — capable of being justified; that can be shown to be or can be defended as being just, right, or warranted; defensible: justifiable homicide.
- unjustifiably — capable of being justified; that can be shown to be or can be defended as being just, right, or warranted; defensible: justifiable homicide.
- unperformable — to carry out; execute; do: to perform miracles.
- unqualifiedly — not qualified; not fit; lacking requisite qualifications: unqualified for the job.
- unrectifiable — able to be rectified.
- unreproachful — not deserving reproach or blame
- unsatisfiable — not able to be satisfied
- unspecifiable — not able to be specified
- unsteadfastly — in an unsteadfast manner
- unsuperficial — external or outward: a superficial resemblance.
- unvitrifiable — not able to be vitrified
- venus flytrap — firewall machine
- volcanic tuff — tuff2 .
- walnut family — the plant family Juglandaceae, characterized by deciduous trees having alternate, pinnately compound leaves, male flowers in tassellike catkins and female flowers in clusters, and edible nuts enclosed in a thick-walled or leathery husk, and including the butternut, hickory, pecan, and walnut.
- wasterfulness — the state of being wasteful
- wolffian duct — a duct, draining the mesonephros of the embryo, that becomes the vas deferens in males and vestigial in females.