nerd

/nɜrd/ n [C] infml

Definition

› a person who lacks social skills, esp. someone interested in technical things: Gina’s brother is a complete nerd. nerdy

/ˈnɜrd·i/ adj › infml He was a short, nerdy guy with glasses.

(Definition of nerd n from the Cambridge Academic Content Dictionary © Cambridge University Press)

to do something without worrying about the risk or negative results

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