JMdict: 2840604

ガードが固い 【ガードがかたい】

  1. [exp,adj-i] having one's guard up; not showing weak points
  2. [exp,adj-i] (of women) resisting attempts of being hit on; being distrustful of potential love interests; prudish
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Kanji in this word:

Kanji Meanings On Readings Kun Readings
固 Harden, Set, Clot, Curdle コ かた.める, かた.まる, かた.まり, かた.い