ガードがかたい

ガードが固い

表記・読み：ガードが堅い・ガードがかたい

1. 1

   having one's guard up; not showing weak points

   expressions (phrases, clauses, etc.)い形容詞
2. 2

   (of women) resisting attempts of being hit on; being distrustful of potential love interests; prudish

   expressions (phrases, clauses, etc.)い形容詞esp. ガードが堅い