16-letter words containing o, b, e, l, u, s
- unreasonableness — not reasonable or rational; acting at variance with or contrary to reason; not guided by reason or sound judgment; irrational: an unreasonable person.
- up to the elbows — deeply engaged (in work, etc.)
- vestibule school — a school in an industrial establishment where new employees are given specific training in the jobs they are to perform.