| hard to please(expression, idiom, tough, grim, problematic) |
| unaccommodating(tough, grim, problematic, trying, troublesome) |
| unamenable(tough, grim, problematic, trying, troublesome) |
| ambitious(tough, problematic, trying) |
| arduous(tough, problematic, trying) |
| argumentative(adjective, tough, grim, problematic, trying) |
| backbreaker(tough, problematic, trying) |
| bearish(adjective, tough, difficult, grim, demanding) |
| boorish(tough, grim, problematic, trying, troublesome) |
| bothersome(tough, problematic, trying) |
| burdensome(tough, problematic, trying) |
| challenging(tough, problematic, trying) |
| crucial(tough, problematic, trying) |
| demanding(adjective, tough, problematic, trying) |
| difficile(tough, problematic, trying) |
| difficult(tough, problematic, trying) |
| easier said than done(expression, idiom, tough, problematic, trying) |
| effortful(tough, problematic, trying) |
| exacting(tough, problematic, trying) |
| fastidious(tough, grim, problematic, trying, troublesome) |