Antonyms of adj superstitious

1 sense of superstitious

Sense 1
superstitious -- (showing ignorance of the laws of nature and faith in magic or chance; "finally realized that the horror he felt was superstitious in origin")

INDIRECT (VIA irrational) -> rational -- (consistent with or based on or using reason; "rational behavior"; "a process of rational inference"; "rational thought")

Similarity of adj superstitious

1 sense of superstitious

Sense 1
superstitious -- (showing ignorance of the laws of nature and faith in magic or chance; "finally realized that the horror he felt was superstitious in origin")
       => irrational (vs. rational) -- (not consistent with or using reason; "irrational fears"; "irrational animals")