Adjective rationalist has 1 sense
  1. rationalist - of or relating to or characteristic of rationalism; "rationalist philosophy"
,Noun rationalist has 1 sense
  1. positivist, rationalist - someone who emphasizes observable facts and excludes metaphysical speculation about origins or ultimate causes
    --1 is a kind of nonreligious person
    --1 has particulars: logical positivist
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