13-letter words containing u, n, f, r
- undifferenced — (of a coat of arms) having no marks indicating family position and to be used by only one person at a time
- undiversified — distinguished by various forms or by a variety of objects: diversified activity.
- unelectrified — not powered by electricity
- unenforceable — to put or keep in force; compel obedience to: to enforce a rule; Traffic laws will be strictly enforced.
- 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.
- unfenestrated — having windows; windowed; characterized by windows.
- unforeseeable — to have prescience of; to know in advance; foreknow.
- unforeseeably — to have prescience of; to know in advance; foreknow.
- unforeskinned — circumcised
- 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.
- unforthcoming — coming, forth, or about to come forth; about to appear; approaching in time: the forthcoming concert.
- unfortunately — suffering from bad luck: an unfortunate person.
- unhurtfulness — the state of being unhurtful
- uninformative — not educational
- unmistrustful — not mistrustful
- unperfectness — the state or quality of being imperfect
- unperformable — to carry out; execute; do: to perform miracles.
- unpersonified — to attribute human nature or character to (an inanimate object or an abstraction), as in speech or writing.
- unrectifiable — able to be rectified.
- unrefined oil — oil that hasn't been refined or processed
- unreproachful — not deserving reproach or blame
- unrestfulness — the state of being restless
- unsuperficial — external or outward: a superficial resemblance.
- unsuperfluous — not superfluous or excessive; moderate
- unthriftiness — the quality or condition of being unthrifty
- unthriftyhead — thriftlessness
- untransferred — to convey or remove from one place, person, etc., to another: He transferred the package from one hand to the other.
- untransformed — not transformed; not having been transformed
- unvitrifiable — not able to be vitrified
- user-friendly — easy to use, operate, understand, etc.: the most user-friendly personal computer now on the market.
- venus flytrap — firewall machine
- wasterfulness — the state of being wasteful
- wonderfulness — excellent; great; marvelous: We all had a wonderful weekend.
- work function — Physics. the least energy necessary to free an electron from a metal surface.
- working fluid — a liquid or gaseous working substance.