1. A lack of balance or state of disequilibrium
   "a hormonal imbalance";
   - instability, unbalance
    
2. Lack of proportion; imbalance among the parts of something
   "The imbalance between his short legs and long torso was noticeable";
   - disproportion, dissymmetry

Derived forms: imbalances

Type of: disequilibrium, disparity

Antonym: balance

Encyclopedia: Imbalance