Webster's 1913 Dictionary
PERPLEXING
PERPLEXING Per *plex "ing, a.
Defn: Embarrassing; puzzling; troublesome. "Perplexing thoughts." Milton.
New American Oxford Dictionary
perplexing
per plex ing |pərˈpleksiNG | ▶adjective completely baffling; very puzzling: a perplexing problem. DERIVATIVES per plex ing ly adverb
Oxford Dictionary
perplexing
per ¦plex |ing |pəˈplɛksɪŋ | ▶adjective completely baffling; very puzzling: a perplexing problem. DERIVATIVES perplexingly adverb
American Oxford Thesaurus
perplexing
perplexing adjective he was famous for solving the most perplexing cases: puzzling, baffling, mystifying, mysterious, bewildering, confusing, disconcerting, worrying, unaccountable, difficult to understand, beyond one, paradoxical, peculiar, funny, strange, weird, odd.
Oxford Thesaurus
perplexing
perplexing adjective puzzling, baffling, mystifying, mysterious, bewildering, confusing, disconcerting, worrying, unaccountable, difficult to understand, inexplicable, impenetrable, unfathomable, paradoxical, peculiar, funny, strange, weird, odd, beyond one; complex, complicated, difficult, hard, taxing, knotty, thorny, ticklish, involved, intricate, convoluted, labyrinthine, Byzantine; informal spiny, mind-bending; archaic wildering.
Sanseido Wisdom Dictionary
perplexing
per pl é x ing 形容詞 〈問題などが 〉 (人を )困らせる, 当惑させる ; 面倒な, 込み入った .～ly 副詞
The Wordsmith Dictionary