| soporific(adjective, dull, flat, boring, tedious) |
| sounded |
| stupor(noun, inactivity, lethargy, trifling, laziness) |
| time-wasting(noun, inactivity, lethargy, trifling, laziness) |
| time to burn(expression, idiom, inactivity, lethargy, trifling) |
| time to kill(expression, idiom, inactivity, lethargy, trifling) |
| tonal |
| torpidity(noun, inactivity, lethargy, trifling, laziness) |
| torpor(noun, inactivity, lethargy, trifling, laziness) |
| trailer |
| trifling(noun, inactivity, lethargy, laziness, idleness) |
| truancy(noun, inactivity, lethargy, trifling, laziness) |
| unchanged(adjective, dull, flat, boring, tedious) |
| unchanging(adjective, dull, flat, boring, tedious) |
| unemployment(noun, inactivity, lethargy, trifling, laziness) |
| uniform(adjective, dull, flat, boring, tedious) |
| uninflected(adjective, dull, flat, boring, tedious) |
| unrelieved(adjective, dull, flat, boring, tedious) |
| unvarying(adjective, dull, flat, boring, tedious) |
| vegetating(noun, inactivity, lethargy, trifling, laziness) |