We found one dictionary that defines the word irrational impulses:

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1. irrational impulses: Vocabulary.com

(Note: See irrational_impulse as well.)

Definitions from WordNet (irrational impulse) ▸ noun:  a strong spontaneous and irrational motivation ▸ Also see irrational_impulse ▸ Words similar to irrational impulses ▸ Usage examples for irrational impulses ▸ Idioms related to irrational impulses ▸ Wikipedia articles (New!) ▸ Words that often appear near irrational impulses ▸ Rhymes of irrational impulses ▸ Invented words related to irrational impulses