12-letter words containing b, i, o, l, u
- unhospitable — not hospitable
- unlibidinous — not libidinous
- unmodifiable — incapable of being modified
- unnegotiable — capable of being negotiated: a negotiable salary demand.
- unnoticeable — attracting notice or attention; capable of being noticed: a noticeable lack of interest.
- unnoticeably — attracting notice or attention; capable of being noticed: a noticeable lack of interest.
- unobligatory — required as a matter of obligation; mandatory: A reply is desirable but not obligatory.
- unobtainable — to come into possession of; get, acquire, or procure, as through an effort or by a request: to obtain permission; to obtain a better income.
- unpolishable — incapable of being made smooth or shiny
- unprofitable — being without profit; not showing or turning a profit: a series of unprofitable ventures.
- unsalubrious — favorable to or promoting health; healthful: salubrious air.
- 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
- vocabularian — a person who is particularly or overly attentive to words
- vocabularied — having a vocabulary as specified
- zebulon pike — James Albert, 1913–69, U.S. Protestant Episcopal clergyman, lawyer, and author.