Antonyms of adj penitential

1 sense of penitential

Sense 1
penitential, penitentiary -- (showing or constituting penance; "penitential tears"; "wrote a penitential letter apologizing for her hasty words")

INDIRECT (VIA penitent, repentant) -> impenitent, unrepentant, unremorseful -- (not penitent or remorseful)
INDIRECT (VIA penitent, repentant) -> impenitent, unrepentant, unremorseful -- (not penitent or remorseful)

Similarity of adj penitential

1 sense of penitential

Sense 1
penitential, penitentiary -- (showing or constituting penance; "penitential tears"; "wrote a penitential letter apologizing for her hasty words")
       => penitent (vs. impenitent), repentant (vs. unrepentant) -- (feeling or expressing remorse for misdeeds)