un dutiful (adjective) impious: not religious
Sinonime: agnostic,
apostate, atheistic, blasphemous, canting,
contrary,
deceitful, defiling, desecrating, desecrative, diabolic, disobedient,
disrespectful, godless, hardened,
hypocritical, iconoclastic,
immoral,
iniquitous, irreligious,
irreverent,
perverted, pietistical,
profane, recusant,
reprobate, sacrilegious,
sanctimonious, satanic,
scandalous,
sinful,
unctuous, undutiful,
unethical, unfaithful, ungodly, unhallowed, unholy, unregenerate, unrighteous, unsanctified,
wayward,
wickedAntonime: holy,
pious,
religious