11-letter words containing a, b, u, k, r
- unbreakable — to smash, split, or divide into parts violently; reduce to pieces or fragments: He broke a vase.
- undrinkable — suitable for drinking.
- unrevokable — that may be revoked.
- untrackable — a structure consisting of a pair of parallel lines of rails with their crossties, on which a railroad train, trolley, or the like runs.