adj. 25B6; adjective PUZZLING, baffling, mystifying, mysterious, bewildering, confusing, disconcerting, worrying, unaccountable, difficult to understand, beyond one, paradoxical, peculiar, funny, strange, weird, odd.
PERPLEXING
Meaning of PERPLEXING in English
Concise Oxford thesaurus English vocabulary. Краткий оксфордский словарь английского языка тезаурус. 2012