Translation guide
Ways to express overestimation in Japanese, from direct nouns to common verbal phrases and warnings about literal translations.
Expressing that someone has estimated something too highly, as a general concept or result.
The standard noun meaning 'overestimation' or 'overrating'. Used in both formal and everyday contexts.
That's an overestimation.
Overestimation of his abilities is dangerous.
A slightly more formal or written term for overestimation, often used in analytical contexts.
Overestimation of risk leads to poor judgment.
Saying that you or someone else has overestimated a person, ability, value, etc.
I overestimated him. · Don't overestimate your strength.
The verb form of 過大評価. The most direct and common way to say 'to overestimate'.
I overestimated him.
You must not overestimate your own strength.
A very common, slightly casual verb meaning to overestimate or think too highly of someone. Often used when you realize someone isn't as good as you thought.
Literally 'to estimate high'. Used for numerical estimates, costs, time, etc. More concrete than 過大評価.
I overestimated the cost.
To overtrust or have excessive confidence in something/someone. Implies relying too much on it.
Don't overestimate your physical strength (don't be overconfident in it).
Common expressions used to warn someone not to overestimate something.
A straightforward warning pattern: 'You must not overestimate ~'.
Don't overestimate your opponent.
A more colloquial warning using 買いかぶる.
Don't overestimate him.
Avoid directly translating 'overestimation' as 上評価 or similar made-up compounds. Stick to 過大評価 or the verb phrases above.
買いかぶる is more personal and often implies a mistaken high opinion of a person. 過大評価する is more neutral and can be used for abilities, values, risks, etc.
彼のこと買いかぶりすぎだよ。
You're overestimating him too much.
I was just overestimated (people thought too highly of me).