Synonym: abrupt, hasty, impulsive, rash, reckless, sudden, unexpected. Similar words: impetuously, impetus, tempestuous, fatuous, virtuous, unctuous, sumptuous, voluptuous. Meaning: [ɪm'petʃʊəs] 
adj. 1. characterized by undue haste and lack of thought or deliberation 2. marked by violent force.
adj. 1. characterized by undue haste and lack of thought or deliberation 2. marked by violent force. 61. Was that impetuous of the river?or endless of the hungriness ?
More similar words: impetuously, impetus, tempestuous, fatuous, virtuous, unctuous, sumptuous, voluptuous, tumultuous, contemptuous, presumptuous, contemptuously, imperious, impervious, petulant, perpetual, petulance, perpetuate, compete, trumpets, competency, competence, competitor, competitive, competition, whimper, impel, impede, impeach, imperial.