confound[verb]Synonyms: bewilder, astound, baffle, confuse, dumbfound, flummox, mystify, nonplus, perplex 
Antonyms: discriminate, distinguish
Related Idioms: take aback
 [TahlilGaran] English Synonym Dictionary ▲
 con‧found /kənˈfaʊnd/ 
 verb [transitive][
Date: 1200-1300; 
Language: Old French; 
Origin: confondre 'to ruin, destroy', from Latin confundere 'to pour together, confuse', from com- ( ⇒ COM-) + fundere 'to pour']
1.  to confuse and surprise people by being unexpected: 
 His amazing recovery confounded the medical specialists.2.
 His amazing recovery confounded the medical specialists.2.  to prove someone or something wrong
confound the critics/pundits/experts etc United’s new striker confounded the critics with his third goal in as many games.3.  formal
 United’s new striker confounded the critics with his third goal in as many games.3.  formal to defeat an enemy, plan etc
4.  formal if a problem etc confounds you, you cannot understand it or solve it: 
 Her question completely confounded me.5.  confound it/him/them etc old-fashioned
 Her question completely confounded me.5.  confound it/him/them etc old-fashioned used to show that you are annoyed with someone or something 
 [TahlilGaran] Dictionary of Contemporary English ▲