Nonreligious person and Positivist

Nonreligious person noun - A person who does not manifest devotion to a deity.

Positivist and nonreligious person are semantically related. In some cases you can replace term "Positivist" with "Nonreligious person", this terms are similar.

Positivist noun - Someone who emphasizes observable facts and excludes metaphysical speculation about origins or ultimate causes.

Nonreligious person and positivist are semantically related. Sometimes you can use "Nonreligious person" instead a noun "Positivist".