正当せいとう
seitō

Noun
na-Adjective

1. just; justifiable; right; due; proper; equitable; reasonable; legitimate; legal; lawful

先生せんせい彼女かのじょ正当せいとうあつかいをしなかった。
sensēwa kanojoni sētōna toriatsukaio shinakatta.
The teacher didn't do her justice.