blocked locked adj. 1. closed to traffic. Traffic was blocked by an overturned tractor-trailor

Syn: out of use(predicate). [WordNet 1.5]

2. at a complete standstill because of opposition of two unrelenting forces or factions.

Syn: deadlocked, stalemated. [WordNet 1.5]

3. unusable because of some obstruction. [WordNet 1.5]

The Collaborative International Dictionary of English. 2000.