An adverb is a word that modifies (describes) a verb. Adverbs often end in -ly, but some (such as fast) look exactly the same as their adjective counterparts.
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betwixt
2
bitingly
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bitterly
4
bizarrely
5
blasted
6
blaze
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bleakly
8
blind
9
blissfully
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bluntly
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bona fide
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brashly
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brightly
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bucolically
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bumptiously
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busily
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but
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callously
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cannily
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carefully
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carelessly
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categorically
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ceaselessly
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centrifugally
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characteristically
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charismatically
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cheaply
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cheerfully
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chivalrously
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churlishly
32
cinematographically
33
circumspectly