- Slowly is the usual adverb from the adjective slow. Slow is sometimes used as an adverb in informal language, on road signs, etc. It can also be used to form compounds:Slow. Major road ahead. a slow-acting drug They walk very slow.
- In informal comparisons, both slower and more slowly are used:Can you speak slower/more slowly?In formal language, and especially in writing, slowly is used as the adverb form.
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making slow but definite progress We'll get there slowly but surely.
Check pronunciation: slowly