12-letter words containing u, n, b, o, l
- unreasonably — not reasonable or rational; acting at variance with or contrary to reason; not guided by reason or sound judgment; irrational: an unreasonable person.
- unreckonable — to count, compute, or calculate, as in number or amount.
- unrecordable — to set down in writing or the like, as for the purpose of preserving evidence.
- unrecoupable — to get back the equivalent of: to recoup one's losses by a lucky investment.
- unreformable — not able to be reformed or reclaimed
- unreportable — not able to be reported, relayed, or spoken of
- unreprovable — not able to be reproved, reproached, or criticized
- unresolvable — not able to be resolved or brought to a satisfactory resolution
- unrestorable — to bring back into existence, use, or the like; reestablish: to restore order.
- unsalubrious — favorable to or promoting health; healthful: salubrious air.
- unseasonable — not seasonable; being out of season; unseasonal: unseasonable weather.
- unseasonably — not seasonable; being out of season; unseasonal: unseasonable weather.
- unshadowable — not able to be shadowed
- unsupposable — not able to be supposed
- untroubledly — in an untroubled manner
- unvoyageable — not able to be sailed or otherwise journeyed over; untraversable; innavigable
- urbanologist — a sociologist specializing in urban life and problems
- urobilinogen — a colourless substance produced by bacterial degradation of the bile pigment bilirubin in the intestine and which produces urobilin when oxidized
- valve bounce — A valve bounce is the bouncing of a poppet valve on its seat when it is closing.
- vocabularian — a person who is particularly or overly attentive to words
- whole number — Also called counting number. one of the positive integers or zero; any of the numbers (0, 1, 2, 3, …).
- zebulon pike — James Albert, 1913–69, U.S. Protestant Episcopal clergyman, lawyer, and author.