Found 2 items, similar to breakneck.
English → English (WordNet) Definition: breakneck breakneck adj : used of speed; “a breakneck pace”
English → English (gcide) Definition: Breakneck Breakneck \Break"neck`\, n. 1. A fall that breaks the neck. [1913 Webster] 2. A steep place endangering the neck. [1913 Webster] Breakneck \Break"neck`\, a. Producing danger of a broken neck; as, breakneck speed. [1913 Webster]