Synonyms of grinding

1 Syllable
rub
2 Syllables
grueling, grating, frictions, milling, crumbling, rubbing, rasping, raucous, crunching, friction, scraping, smashing, crushing
3 Syllables
absonant, shivering, attrition, eroding, powdering, bone-crushing, assiduous, onerous, atonal, stertorous, harsh-sounding
4 Syllables
oppressive, granulating, pulverizing, overtaxing, depressive, trituration
5 Syllables
superincumbent, disintegrating