Prolix

прилагательное 1) долгий, длительный Синоним(ы): lengthy, protracted 2) многословный, занудный (о человеке) Синоним(ы): verbose, tedious, humdrum

Большой англо-русский словарь

Prolix

adjective Etymology: Middle English, from Anglo-French and Latin; Anglo-French prolix, from Latin prolixus extended, from pro- forward + liquēre to be fluid — more at liquid 1. unduly prolonged or drawn out; too long 2. marked by or using an excess of words Synonyms: see wordyprolixity nounprolixly adverb

Merriam-Webster's Collegiate Dictionary