Translation guide
A plan that is not final and may change. In Japanese, this is often expressed with words like 仮 (temporary) or 予定 (schedule/plan) combined with modifiers indicating uncertainty.
To describe a plan that is still under consideration and subject to change.
Literally 'temporary schedule/plan'. This is the most direct and common way to say 'tentative plan' in Japanese. It clearly indicates that the plan is not final.
今のところ、仮の予定は来週の金曜日です。
For now, the tentative plan is next Friday.
これはまだ仮の予定なので、変更になるかもしれません。
This is still a tentative plan, so it might change.
More formal, often used in business or official contexts. 暫定的 means 'provisional' or 'tentative', and 計画 means 'plan'.
暫定的な計画を立てて、後で詳細を詰めましょう。
Let's make a tentative plan and work out the details later.
Literally 'unconfirmed schedule'. Used when the plan is not yet fixed. More formal and less common in casual speech.
未確定の予定がいくつかあります。
There are several tentative plans.
To express that you have a general idea but details are not set.
Means 'rough plan' or 'broad schedule'. Emphasizes that the plan lacks detail.
大まかな予定を教えてください。
Please tell me the tentative plan (rough outline).
Casual way to say 'rough plan'. ざっくり means 'roughly' or 'approximately'.
ざっくりとした計画でいいので、共有してください。
A rough plan is fine, so please share it.
To emphasize the uncertainty or flexibility of the plan.
Means 'fluid schedule', implying that things are in flux and may change.
状況が変わりやすいので、予定は流動的です。
The situation is changeable, so the plan is tentative.
Explicitly states 'a plan with the possibility of change'. More wordy but clear.
変更の可能性がある予定としてお知らせします。
We will inform you as a tentative plan (with possibility of change).
予定 (schedule/plan) is more common for everyday arrangements and timelines. 計画 (plan) is used for more deliberate, structured plans, like projects or strategies. For 'tentative plan', 仮の予定 is the most natural choice in most situations.
仮の予定を立てる
to make a tentative plan (schedule)
暫定的な計画を策定する
to formulate a tentative plan (project/strategy)