have no idea

phrase

1

: to not know or understand

I have no idea what you're talking about.

2

—used to reply to someone as an emphatic "yes"

"Was it hard?" "You have no idea (how hard it was)!"

Examples of have no idea in a Sentence

Recent Examples on the Web

But attacks are rare — swimmers and surfers often have no idea there’s a shark nearby. — Kori McNair, Los Angeles Times, 16 July 2026

So many taxpayers have no idea that leaving blank and not signing the system doesn't mean staying neutral. — Tax Notes Staff, Forbes.com, 7 July 2026

People have no idea how hard that is to do, to be able to separate those two things. — Anna Lazarus Caplan, PEOPLE, 10 Apr. 2026

Thyroid disorders affect roughly 1 in 10 women, and about 60% of those affected have no idea. — Allison Palmer, Fort Worth Star-Telegram, 10 Apr. 2026

Rhymes for have no idea

• amenorrhea
• amenorrhoea
• cassiopeia
• dysmenorrhea
• dysmenorrhoea
• laminaria
• pharmacopeia
• pharmacopoeia
• solanaceae
• thiourea
• aliya
• aliyah