Translation guide
In Japanese, expressing 'secret plan' depends on the nuance: a hidden strategy, a surprise scheme, a conspiracy, or a confidential project. The most common and versatile word is 秘密計画 (himitsu keikaku), but other terms like 秘策 (hisaku) for clever schemes or 陰謀 (inbō) for sinister plots are also used. This guide covers natural ways to convey the idea.
A plan kept hidden from others, often for strategic or personal reasons.
The most direct and neutral translation. Suitable for both formal and casual contexts.
They are proceeding with a secret plan.
I haven't told anyone about that secret plan yet.
Casual, often used for personal secrets or surprises among friends or family.
This is a secret plan, so don't tell anyone.
A cunning or ingenious plan, often in business, politics, or competition.
A secret plan by a group to do something harmful or illegal.
A conspiracy or plot, often with malicious intent. Used in political, historical, or dramatic contexts.
The secret plot was exposed by an insider.
A scheme or plot, often with a negative nuance. Can be used for personal or small-scale secret plans.
A plan kept secret to surprise someone, like a party or gift.
秘密計画 is a neutral 'secret plan', while 陰謀 implies a malicious conspiracy. Use 陰謀 only when the plan is harmful or illegal.
He grew the company with a secret plan.
He took over the company through a conspiracy.
Directly translating 'secret plan' as 秘密の計画 is grammatically correct but often sounds redundant or unnatural. Use 秘密計画 as a compound word, or choose a more specific term like 秘策 or 陰謀 depending on context.
He hatched a secret plan to bring down his political rival.
He is suspected of being involved in a conspiracy.
彼の企みは失敗に終わった。
His secret plan ended in failure.
The kids are hatching a secret plan for Mother's Day.