| tediously(adverb, seriously, heavily, deeply, slowly) |
| thoroughly(adverb, severely, fully, precisely, correctly) |
| thoughtfully(severely, thoroughly, fully, precisely, correctly) |
| ticklishly(adverb, difficultly) |
| tightly(adverb, difficultly) |
| tiredly(adverb, badly, severely, vigorously, hardly) |
| tiresomely(adverb, heavily, slowly, arduously, strenuously) |
| trickily(adverb, difficultly) |
| trustily(severely, thoroughly, fully, precisely, correctly) |
| tryingly(adverb, difficultly) |
| unremittingly(adverb, vigorously, earnestly, actively, hastily) |
| unsparingly |
| unweariedly(vigorously, earnestly, actively, hastily, carefully) |
| unwieldily(adverb, badly, severely, vigorously, hardly) |
| uphilly |
| uprightly(severely, thoroughly, fully, precisely, correctly) |
| vehemently |
| vivaciously(vigorously, earnestly, actively, hastily, carefully) |
| warily(severely, thoroughly, fully, precisely, correctly) |
| watchfully(severely, thoroughly, fully, precisely, correctly) |