hindsight is 20/20
Proposed by a contributor, not yet supported by evidence.
Meaning · English
It is easy to understand or see something after it has happened
Nghĩa · Tiếng Việt
Dễ hiểu hoặc nhìn thấy điều gì sau khi nó đã xảy ra
Machine-translated — suggest a fix
Literally: perfect vision after the fact
Where it’s used:
Used
Widespread English
Examples
I should have invested in that stock, but hindsight is 20/20
AI-drafted example auto-approved by rule (illustrative, not a corpus attestation)
Sources & notes
Listed in Wiktionary’s “English idioms” category (retrieved 2026-07-29); definition pending editorial review. Definition drafted by AI (@cf/meta/llama-3.3-70b-instruct-fp8-fast) and auto-approved by rule on 2026-07-31; pending editor spot-check.
Common questions
What does “hindsight is 20/20” mean?
It is easy to understand or see something after it has happened Literally: perfect vision after the fact
Is “hindsight is 20/20” formal or informal?
No register label has been reviewed yet — treat it as neutral and check the usage notes above.