hidden weakness
- vulnerabilityOpenness to harm
- flawImperfection in something
- Achilles heelSingular fatal vulnerability
- soft spotEmotional vulnerability or fondness
- chink in armorExploitable flaw in defenses
underbelly · blind spot · fragility · crack · fault · secret · mask · brittle · exposed · tender · frailty · susceptibility · insecurity · shadow · defect · concealed · lurking · buried
valence
hidden weaknesssecret weapon
Hidden strategic advantage
hidden asset · hidden potential · ace in the hole · trump card · hidden power