unstatedreason

noun
UK /ʌnˈsteɪtɪd ˈriːzən/
US /ʌnˈsteɪtɪd ˈrizən/

A reason that someone does not say out loud.

She left the party early for an unstatedreason.


OTHER MEANINGS

2. A cause that is understood but never spoken.

His unstatedreason for helping was kindness.

3. A purpose kept private on purpose.

The unstatedreason behind the rule confused everyone.

4. An explanation that is left out of a story or report.

The report mentioned the delay but gave an unstatedreason.