Impatience

(n.) The quality of being impatient; want of endurance of pain, suffering, opposition, or delay; eagerness for change, or for something expected; restlessness; chafing of spirit; fretfulness; passion; as, the impatience of a child or an invalid.

Thesaurus Entries

alacrity, animation, anxiety, anxiousness, appetite, avidity, avidness, breathless impatience, cheerful readiness, eagerness, elan, forwardness, gust, gusto, haste, hastiness, impetuosity, impetuousness, impulsiveness, keen desire, keenness, life, liveliness, overhastiness, precipitance, precipitancy, precipitateness, precipitation, promptness, quickness, rashness, readiness, recklessness, spirit, suddenness, verve, vitality, vivacity, zest, zestfulness