| rough(adjective, difficult, fussy, fastidious, exacting) |
| scrutinizing |
| sedulous(adjective, thorough, meticulous, painstaking) |
| sharp(severe, harsh, critical, demanding, discerning) |
| stickler(adjective, careful, thorough, meticulous, fussy) |
| stickling(adjective, careful, scrupulous, meticulous, fussy) |
| systematic |
| thoroughgoing(adjective, thorough, meticulous, painstaking) |
| tight(adjective, difficult) |
| toilsome(adjective, tough, difficult, problematic, trying) |
| tough(adjective, difficult, harsh, awkward, grim) |
| tricky(adjective, difficult) |
| troublesome(adjective, difficult) |
| trying(adjective, tough, difficult, harsh, rigid) |
| uphill(adjective, tough, difficult, problematic, trying) |
| vigilant(adjective, careful, thoughtful, sober, attentive) |
| watchful(cautious, wary) |
| wearisome(adjective, tough, difficult, problematic, trying) |
| abundant(exact, full, thorough, comprehensive, itemized) |
| adverse(adjective, difficult) |