Also found in: Medical.
1. The male occupying the lowest position in the social hierarchy of an animal group. Emerging research on animal groups suggests that omega males may have more complex roles than previously thought.
2. A man who feels powerless and, as a result, does not actively work toward improving his life. He's a real omega male—he's unemployed, single, and miserable, and not doing anything to change that.
Farlex Dictionary of Idioms. © 2015 Farlex, Inc, all rights reserved.