| inadmissible(noun, adjective, disagreeable, lousy, unwelcome) |
| inhibition(noun, control, check, limit, condition) |
| inhospitableness(noun, unpleasant, disagreeable, lousy, unwelcome) |
| inhospitality(noun, lousy, unwelcome, repellent, undesirable) |
| interference(noun, difficulty, obstacle, obstruction, impediment) |
| interruption(noun, difficulty, obstacle, obstruction, impediment) |
| intervention(noun, difficulty, obstacle, obstruction, impediment) |
| jam-up(noun, difficulty, arrest, obstacle, obstruction) |
| joker(noun, difficulty, obstacle, obstruction, impediment) |
| limitation(noun, control, check, difficulty, limit) |
| limits(noun, control, check, limit, condition) |
| load(noun, trouble, concern, strain, difficulty) |
| lock(noun, control, check, difficulty, limit) |
| lousy(noun, adjective, unpleasant, disagreeable, unwelcome) |
| millstone(noun, trouble, concern, strain, difficulty) |
| misfortune(noun, trouble, concern, strain, weight) |
| mishap(noun, trouble, concern, strain, weight) |
| monkey wrench(noun, expression, difficulty, obstacle, obstruction) |
| no-no(noun, control, check, limit, condition) |
| nonessential(adjective, important, extra, unnecessary, needed) |