1.(followed by 'of') lacking capacity or ability (Freq. 4) - incapable of carrying a tune - he is incapable of understanding the matter - incapable of doing the work • Ant: capable • Similar to: unable • See Also: incompetent • Derivationally related forms: incapableness, incapability • Attrubites: capability, capableness, potentiality 2. not being susceptible to or admitting of something (usually followed by 'of')(Freq. 1) - incapable of solution • Similar to: unsusceptible, insusceptible • Derivationally related forms: incapability 3.(followed by 'of') not having the temperament or inclination for - simply incapable of lying • Ant: capable • Derivationally related forms: incapability 4. not meeting requirements - unequal to the demands put upon him • Syn: incompetent, unequal to • Similar to: inadequate, unequal • Derivationally related forms: incompetence (for: incompetent), incapability