1. grueling - Noun
2. grueling - Adjective
3. grueling - Verb
4. grueling - Adjective Satellite
characterized by effort to the point of exhaustion; especially physical effort
Source: WordNetworked their arduous way up the mining valley Source: Internet
a grueling campaign Source: Internet
hard labor Source: Internet
heavy work Source: Internet
heavy going Source: Internet
spent many laborious hours on the project Source: Internet