| powerfully(adverb, fast, sprightly, severely, seriously) |
| vigorously(adverb, fast, seriously, intensely, fiercely) |
| firmly(adverb, fast, severely, intensely, fiercely) |
| energetically(adverb, fast, seriously, intensely, fiercely) |
| mightily(adverb, powerfully, firmly, energetically, forcefully) |
| forcefully(adverb, fiercely, roughly, powerfully, firmly) |
| heartily(adverb, tenaciously) |
| actively(adverb, fast, sprightly, severely, seriously) |
| forcibly(adverb, fast, sprightly, severely, seriously) |
| intensely(adverb, fast, sprightly, severely, seriously) |
| potently(adverb, vigorously, powerfully, energetically) |
| fiercely(adverb, fast, sprightly, severely, seriously) |
| fervently(adverb, vigorously, tenaciously) |
| toughly(adverb, tenaciously) |
| lustily(adverb, vigorously) |
| robustly(adverb, powerfully, firmly, energetically, mightily) |
| sturdily(adverb, powerfully, firmly, mightily, stably) |
| ardently(adverb, vigorously, energetically) |
| eagerly(adverb, vigorously) |
| hardly |