perplex
verb
[usually passive] if sth perplexes you, it makes you confused or worried because you do not understand it
SYN PUZZLE:
[VN] They were perplexed by her response. [also VN that]
perplexing adjective:
a perplexing problem / question I found the whole thing extremely perplexing.

• Từ trái nghĩa / Antonyms: simplify  
• Từ đồng nghĩa / Synonyms: complicate   vex   stick   get   puzzle   mystify   baffle   beat   pose   bewilder