is sharply an adverb
The early bus (adjective) = the bus that arrives early (adverb). 1  Most adverbs, like adjectives, can be compared using more and most: sharply--more sharply--most sharply. 2  One-syllable adverbs are compared using-er and-est: straight--straighter--straightest. Most adverbs, like adjectives, can be compared using more and most: sharply--more sharply--most sharply. 2  One-syllable adverbs are compared using-er and-est: straight--straighter--straightest.