kept to oneself
Held in private
Kept to oneself describes information that was not shared with others: She kept her suspicions to herself.
It also describes someone who remained socially withdrawn or private: He kept to himself during the conference.
The phrase suggests deliberate restraint—choosing silence or solitude rather than having it imposed.
- introvertedTurned toward inner life
- lone wolfSelf-reliant individualist
- solitaryExisting alone, apart
- reservedRestrained in manner
- non-disclosureMandated secrecy obligation
quiet · secretive · shy · circumspect · confidentiality · detachment · discreet · under wraps · reclusive · flew under the radar · guarded · private · closed book · taciturn · tight-lipped · withdrawn · reticent · inner circle