13-letter words containing f, l, u, t, i, n
- unelectrified — not powered by electricity
- unfacilitated — to make easier or less difficult; help forward (an action, a process, etc.): Careful planning facilitates any kind of work.
- 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.
- uniflagellate — having only one flagellum.
- 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.
- unmistrustful — not mistrustful
- unpitifulness — a lack or absence of pity
- unrectifiable — able to be rectified.
- unsatisfiable — not able to be satisfied
- unvitrifiable — not able to be vitrified
- 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.
- wolffian duct — a duct, draining the mesonephros of the embryo, that becomes the vas deferens in males and vestigial in females.