| set in stone(expression, adjective, idiom, secure, tough) |
| dead set on(expression, adjective, idiom, secure, determined) |
| immovable(adjective, secure, difficult, wild, determined) |
| obdurate(adjective, tough, determined, fixed, stiff) |
| obstinate(adjective, tough, firm, determined, usual) |
| pigheaded(adjective, tough, determined, usual, regular) |
| resolute(adjective, secure, tough, firm, determined) |
| single-minded(adjective, tough, firm, cruel, stiff) |
| uncompromising(adjective, secure, tough, firm, steady) |
| unyielding(adjective, hard, tough, determined, fixed) |
| adamant(adjective, severe, determined, fixed, impassive) |
| agreed(adjective, firm, determined, usual, regular) |
| appointed(adjective, firm, determined, usual, regular) |
| arranged(adjective, firm, determined, usual, regular) |
| astute(adjective, hard, tough, sharp, practical) |
| awkward(adjective, tough, difficult, wild, obstinate) |
| bent(adjective, firm, determined, usual, regular) |
| bound(verb, adjective, cruel, restrained, tight) |
| bullheaded(adjective, tough, severe, wild, awkward) |
| buried |