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

 

merciless

 adjective
adjective
BrE BrE//ˈmɜːsɪləs//
 
; NAmE NAmE//ˈmɜːrsɪləs//
 
 
jump to other results
showing no kindness or pity synonym cruel a merciless killer/attack the merciless heat of the sun She was subjected to the merciless criticism of her opponents. It brought relief from the merciless summer heat.
See the Oxford Advanced American Dictionary entry: merciless