Synonyms of nagging

1 Syllable
sore, raw, hard, sharp, trying, dire
2 Syllables
torment, hurting, burning, biting, grievous, achiest, tender, haunting, tedious, carping, caustic, throbbing, achier, arduous, shrewish, smarting, dreadful, stinging, awful, piercing, captious, achy, plaguy, aching, hurtful
3 Syllables
laborious, extreme, demanding, saddening, tormenting, critical, terrible, distressing, harrowing, backbreaker, difficult, severe, unpleasant, vexatious, cavillous, inflamed, fault-finding
4 Syllables
excruciating, distasteful, disagreeable, excruciation, sensitive, troublesome, irritated, nettlesome, exceptive, agonizing, afflictive
5 Syllables
uncomfortable, overcritical