Synonyms of the word 
UNREMORSEFUL → IMPENITENT - UNASHAMED - UNREGENERATE - UNREGENERATED - UNREPENTANT
unremorseful
- adj. not remorseful.
impenitent
- adj. Not penitent; not repenting of sin; not contrite; of a hard heart.
- n. One who is not penitent.
unashamed
- adj. feeling or showing no shame, embarrassment or remorse.
unregenerate
- adj. which cannot be transformed in mind and spirit.
- adj. stubborn.
unregenerated
- adj. Not regenerated; unimproved.
unrepentant
- adj. Feeling or showing no sorrow or regret for wrongdoing.
If you are interested in words, visit the following sites :
- wiktionary.org/unremorseful For complete definition of a word
- 1word.ws/unremorseful to play with words, suffixs, prefixs, etc.