予よ定ていは未み定てい

expression

plans are but plans; the schedule is not decided

A humorous or resigned set phrase meaning that plans are tentative and subject to change. Often used when a schedule is still up in the air.

• 来らい月げつの旅りょ行こう、予よ定ていは未み定ていだけど、楽たのしみにしてる。

  Next month's trip is still up in the air, but I'm looking forward to it.

• 会かい議ぎの日にっ程ていはまだ決きまってないよ。予よ定ていは未み定ていってやつだね。

  The meeting date hasn't been decided yet. It's a case of 'plans are but plans,' you know.