heartless, despicable, uncaring, reprehensible, cowardly, insensitive, disgraceful, unfeeling, contemptible, cruel, vindictive, shameful, thoughtless, coldhearted, appalling, cynical, unconscionable, crass, unremorseful, heinous, irresponsible, disgusting, contemptuous, wanton, shameless, dishonest, hypocritical, arrogant, senseless, deceitful, depraved, barbaric, flippant, spiteful, unforgivable, meanspirited, pathetic, unprincipled, selfish, abominable, dishonorable, tactless, uncompassionate, inhuman, abhorrent, vile, brazen, uncharitable, unsympathetic, foolish, cavalier, deplorable, outrageous, highhanded, shortsighted, disrespectful, repugnant, detestable, loathsome, inexcusable, uncivilized, unjustifiable, inconsiderate, remorseless, inhumane, greedy, ungrateful, dastard, sadistic, ruthless, grotesque, condescending, savage, misguided, hardhearted, unthoughtful, brutal, unpatriotic, unchivalrous, unprofessional, disrespectable, egregious, disingenuous, duplicitous, childish, blatant, premeditated, immoral, egotistical, stupid, unchristian, ghastly, sociopathic, unloving, unthinking, amoral, insincere, distressing, uncouth, grievous, ignorant, reckless, calloused, heedless, ungenerous, compassionate, irreverent

callously, cauterise, cauterize, hard-bitten, hard-boiled, occasionally, pugnacious, unfeelingly

harden, inure

indurate, thick-skinned