Sentence:  I know it sounds <WSD>absurd</WSD> / But please, tell me who I am 
Meaning of the word marked with <WSD> tags:  Contrary to reason or propriety; obviously and flatly opposed to manifest truth; inconsistent with the plain dictates of common sense; logically contradictory; nonsensical; ridiculous; silly. (First attested in the mid 16th century.)<ref name=SOED>(page=10)</ref>