Definition of it's someone's loss
- If she doesn't want to come to the party, it's her loss.
used as subject of an impersonal verb that expresses a condition or action without reference to an agent
used with many verbs as a direct object with little or no meaning
: the player in a game who performs the principal action of the game (such as trying to find others in hide-and-seek)
: some person : somebody
: destruction, ruin
: the act of losing possession : deprivation
: the harm or privation resulting from loss or separation
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