| unclog | (v) become or cause to become unobstructed, Ant. clog, Example: The chemical that we poured down the drain unclogged it |
| Unclog | v. t. [ 1st pref. un- + clog. ] To disencumber of a clog, or of difficulties and obstructions; to free from encumbrances; to set at liberty. Shak. [ 1913 Webster ] |