English

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

 

monster

 adjective
adjective
BrE BrE//ˈmɒnstə(r)//
 
; NAmE NAmE//ˈmɑːnstər//
 
 
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[only before noun] (informal) unusually large synonym giant monster mushrooms Word Origin late Middle English: from Old French monstre, from Latin monstrum ‘portent or monster’, from monere ‘warn’.
See the Oxford Advanced American Dictionary entry: monster