1. an abnormal physical condition resulting from defective genes or developmental deficiencies

Definition categories: state

2. retardation sufficient to fall outside the normal range of intelligence

Definition categories: thought, backwardness, retardation, slowness, subnormality

3. marked strangeness as a consequence of being abnormal

Similar word(s): freakishness

Definition categories: attribute, strangeness, unfamiliarity

4. behavior that breaches the rule or etiquette or custom or morality

Similar word(s): irregularity

Definition categories: act, misbehavior, misdeed