proficient

/prəˈfɪʃ·ənt/ adj

Definition

› skilled and experienced: a proficient swimmer He studied Chinese and became proficient in the language. proficiency

/prəˈfɪʃ·ən·si/ n [U] › Morgan has great proficiency as a jazz saxophonist.

(Definition of proficient adj from the Cambridge Academic Content Dictionary © Cambridge University Press)

to do something without worrying about the risk or negative results

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