| retard(noun, stop, check, delay, stay) |
| pause(noun, stop, check, delay, stay) |
| slow(adjective, sluggish, late, inactive, slack) |
| stop(noun, check, delay, stay, pause) |
| inactivity(noun, delay, slowness, sluggishness, passivity) |
| late(adjective, slow, sluggish, inactive, slack) |
| slowness(noun, delay, inactivity, sluggishness, passivity) |
| stay(noun, stop, check, delay, pause) |
| delay(noun, stop, check, stay, pause) |
| passivity(noun, delay, inactivity, slowness, sluggishness) |
| retardation(noun, delay, inactivity, slowness, sluggishness) |
| tardiness(noun, delay, inactivity, slowness, sluggishness) |
| backwardness(noun, delay, inactivity, slowness, sluggishness) |
| inactive(adjective, slow, sluggish, late, slack) |
| obstacle(noun, block, difficulty, barrier) |
| slack(adjective, slow, sluggish, late, inactive) |
| wait(noun, stop, check, delay, stay) |
| difficulty(noun, block, obstacle, barrier) |
| barrier(noun, block, difficulty, obstacle) |
| block(noun, difficulty, obstacle, barrier) |