Not religious; without religious principles; contemning religion; impious; ungodly.Profane; wicked: as, irreligious conduct.Synonyms Irreligious, Godless, Ungodly, Unrighteous, Impious, Profane, Atheistic, are words expressing the position or conduct of those who deny the existence of a God or refuse to obey his commandments. Irreligious means destitute of religion as a principle, contemning religion and not checked by its restraints; godless, acknowledging no God, disregarding God and therefore his commandments, sinful, wicked; ungodly, essentially the same as godless, but stronger as to both feeling and action; unrighteous, disregarding right, contrary to right and by implication (right being with this word viewed chiefly as the personal will of God) not only wrong or unjust, but sinful; impious, irreverent or contemptuous toward God, defiant or wanton in irreligion; profane, impious by word or deed, irreverent or blasphemous; atheistic, holding the doctrine of the non-existence of a God (applied, on account, of the natural tendency of men to deny the existence of a God where their spirit or manner of life is condemned by the teachings of the Christian religion, to whatever would be thus condemned or whoever thus denies). See atheous, 2.