真まさ青おFreq.FrequencyTop 50,000Meanings1na-adjective, noundeep blue; ghastly palearchaicArchaic form of 真っ青 (まっさお). Used in classical or literary contexts to describe a vivid blue or a deathly pale complexion.See also: 真っ青古こ典てんでは「真まさ青お」と書かいて「まさお」と読よむことがある。In classical texts, 真青 is sometimes read as まさお.「真まさ青おな空そら」という表ひょう現げんは古こ風ふうに響ひびく。The expression 真青な空 sounds old-fashioned.