ガードがかた
Meanings
Adjective (い)
Expression
1. having one's guard up; not showing weak points
2. (of women) resisting attempts of being hit on; being distrustful of potential love interests; prudish
esp. ガードが堅い
Kanji used
solidify
Composed of
hard; solid; stiff; tight; strong; firm (not viscous or easily moved); safe