privately; just family/close ones; with no outsiders
Used when a group, especially family or close friends, spends time together without any outsiders present. Often implies a cozy, intimate atmosphere.
Tonight we enjoyed a meal with just the family.
We went to a hot spring, just parent and child, for the first time in a while.
Mixed kana-kanji variant; less common but still seen.
Literally 'without water mixed in', from 水 (water) + 入らず (negative of 入る, to enter) + で (particle). The metaphor suggests an undiluted, pure gathering of close relations, like undiluted liquid.