Patently ridiculous (6)

I believe the answer is:
absurd
'patently ridiculous' is the definition.
(I've seen this before)
This is all the clue.
(Other definitions for absurd that I've seen before include "Incredible" , "Ridiculous, quite nonsensical" , "Derisory, preposterous" , "word to describe Beckett's theatre!" , "Quite ridiculous, silly" .)