callous Synonyms

calloused heartless insensitive insensible cauterize hard hardened obdurate thickened unfeeling pachydermatous indurate unkind unkindly unmerciful unsusceptible wanton unregenerate vitrify vitrified vicious unsparing unconcerned severe soulless stockish stoic stony swooning tearless unsentimental thick-skinned tough toughened toughen unamiable unblushing uncharitable unimpassioned unashamed barbaric unresponsive opportunistic pachydermic unreformable unremorseful rocklike uncaring stonyhearted uncompassionate