have no idea
Proposed by a contributor, not yet supported by evidence.
Meaning · English
Common English phrase; full definition pending editorial review.
Register: neutral
Examples
"What's going on in the cave? I'm curious." "I have no idea.""Trong hang đang xảy ra chuyện gì vậy? Tôi rất là tò mò." "Tôi cũng không biết nữa."
I have no idea where she lives.Tao chẳng biết nó sống ở đâu nữa.
Tatoeba sentence #1508 (CC BY 2.0 FR, tatoeba.org, retrieved 2026-07-31)
Sources & notes
Everyday learner phrase (CEFR B1); level cross-referenced from published learner lists. Definition pending editorial review.
Common questions
What does “have no idea” mean?
Common English phrase; full definition pending editorial review.
Is “have no idea” formal or informal?
have no idea is generally neutral.