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Definition of zealous adjective from the Oxford Advanced Learner's Dictionary

zealous

adjective
 
/ˈzeləs/
 
/ˈzeləs/
 (formal)
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  1. showing great energy and enthusiasm for something, especially because you feel strongly about it
    • a zealous reformer
    Topics Personal qualitiesc2
    Word Originearly 16th cent.: from a medieval Latin derivative of Latin zelus ‘zeal, jealousy’.
See zealous in the Oxford Advanced American Dictionary
Check pronunciation: zealous

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trait
noun
 
 
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