Could you tell me what is the role of the word in bold in the following sentence :

Worrying is pretty inefficient.

  • 1
    Have you used a dictionary. They list the roles that each word has. What are the options for "pretty". Can you now answer your own question?
    – James K
    Dec 8, 2019 at 22:06

1 Answer 1


Pretty is an adverb in this sentence, meaning quite, fairly. See Google/Oxford Dictionary:


to a moderately high degree; fairly.
"he looked pretty fit for his age"

Note that this usage of "pretty" is informal in register.

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