why Synonyms

wherefore what for how come For what why-not what teaser stumper secret riddle reason rationale question wye puzzler brain-teaser whyfor why and wherefore why so to what end reasons how no for why for cause brainteaser whodunit puzzlement puzzle purpose goal fie explanation excuse enigma dilemma crux conundrum cause argument ah grabber ground how pshaw proof problem poser perplexity occasion mystification