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

  

ridiculous

 adjective
adjective
BrE BrE//rɪˈdɪkjələs//
 
; NAmE NAmE//rɪˈdɪkjələs//
 
(also ridic
BrE BrE//rɪˈdɪk//
 
; NAmE NAmE//rɪˈdɪk//
 
informal
)
 
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very silly or unreasonable synonym absurd, ludicrous I look ridiculous in this hat. Don't be ridiculous! You can't pay £50 for a T-shirt! It was ridiculous that this should be so difficult to say. They ate and drank a ridiculous amount. Word Origin mid 16th cent.: from Latin ridiculosus, from ridiculus ‘laughable’, from ridere ‘to laugh’.Extra examples The whole idea was patently ridiculous. The whole situation appealed to her sense of the ridiculous. This is getting ridiculous! Don’t be so ridiculous! It’s ridiculous to suggest that she was involved in anything illegal. That’s the most ridiculous thing I’ve ever heard. You look ridiculous in that hat!
See the Oxford Advanced American Dictionary entry: ridiculous