1) 真まっ当とう #10,400 Inflections of 真っ当 Class Na-adjective Stem Inflected ending ✕ Link copied! Common まっとう [0] まっとう [3] Meaning Shirabe ① Na-adjective Usually kana proper; respectable; decent; honest ② Adverb Archaic entirely; completely; wholly; perfectly Only applies to 全う See also: 全うする (まっとうする), 全く (まったく) Forms 全う#9,974全まっとうまっとう#10,400まっとう真っ当#12,544真まっ当とう