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Adjective: rationalist  ra-sh(u-)nu-list
  1. Of or relating to or characteristic of rationalism
    "rationalist philosophy"
Noun: rationalist  ra-sh(u-)nu-list
  1. Someone who emphasizes observable facts and excludes metaphysical speculation about origins or ultimate causes
    "As a rationalist, she insisted on empirical evidence for all claims";
    - positivist

Derived forms: rationalists

Type of: nonreligious person

Encyclopedia: Rationalist