rainbows and unicorns

Proposed by a contributor, not yet supported by evidence.

Meaning · English

Something overly optimistic or unrealistic

Nghĩa · Tiếng Việt

một điều gì đó quá lạc quan hoặc không thực tế

Machine-translated — suggest a fix

Literally: colorful fantasy images
Where it’s used: Used Widespread English

Examples

She thinks the new policy will bring rainbows and unicorns, but it's not that simple

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 “rainbows and unicorns” mean?

Something overly optimistic or unrealistic Literally: colorful fantasy images

Is “rainbows and unicorns” formal or informal?

No register label has been reviewed yet — treat it as neutral and check the usage notes above.