keeps one's cards close to one's chest

Reveals nothing prematurely

To keep one's cards close to one's chest is to be secretive about one's intentions or resources, revealing little to others.

The image is from card games where concealing your hand gives you an advantage: She keeps her cards close to her chest about the merger negotiations.

The phrase suggests strategic caution rather than deception.

Related

trade secrets · coded language · concealment · privacy · opacity · non-disclosure · hidden agenda · reticence · strategic silence · ambiguity · prudence · playing it safe · close to the vest · foresight · poker face · reservation · understatement · guardedness

Opposites
openness of information sharing

keeps one's cards close to one's chestwears one's heart on one's sleeve

Displays feelings without concealment

tells all · spills the beans · bares one's soul · lets it all hang out · forthcoming

emotional expressiveness

keeps one's cards close to one's chestwears one's heart on one's sleeve

Displays feelings without concealment

expressive · demonstrative · effusive · gushes · uninhibited

Family

keeper, closes, closest, closeness

Familiarity
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Profile
Used worldwide · Timeless · Everyday, not technical · Rated G