This is the 7954th most frequent Japanese word.
外道
"外道" (gedō) means "heretic" or "misguided way," often referring to those who deviate from proper teachings or principles.
The word '外道' here describes wrongful or immoral behavior.
彼の行為は外道そのものだ。
His actions are truly wicked.
Here, '外道' refers to teachings outside of orthodox beliefs.
外道を学んではならない。
One must not study heretical teachings.
In this sentence, '外道' is used metaphorically to describe the person's behavior.