unreasoning

/ʌnˈrizənɪŋ/
adjective
  1. Not using or guided by reason; acting without logical thought or judgment.
    • His unreasoning loyalty to the company made him ignore all the warning signs.
    • The crowd's unreasoning anger led to violence and destruction.
    • Animals act on instinct, not on unreasoning emotion like humans sometimes do.
What does "unreasoning" mean? | whatsthatwordmean | whatsthatwordmean