- racking
- adjtorturous, torturesome, excruciating, agonizing, scathing; severe, sharp, acute, piercing, poignant; insufferable, unbearable, unendurable, extreme, terrific; painful, abusive, harmful, hurtful, injurious; backbreaking, killing, murderous, laborious, toilsome, operose, exacting, tough, hard; hellish, awful, terrible, horrible, dreadful, bad; anguishing, distressing, distressful, afflictive, harrowing; worrisome, troublesome, oppressive, burdensome, wearing; distressing, disturbing, upsetting, disquieting, discomfiting.
A Note on the Style of the synonym finder. 2014.