serious, for real, genuine
まあここガチでやばい場所だからね
I mean, this place is seriously sketchy.
— One Cut of the Dead (2017)
なんかこう雰囲気ガチっすよね
The vibe feels pretty intense, doesn’t it?
ガチかも
It might actually be true.
— デッド・ドント・ダイ (2019)
外はガチで寒い。
It’s seriously cold outside.