have no idea

idiom

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

Wildlife managers have no idea how many mountain lions roam the state because estimating populations is essentially impossible. —Ted Williams, Denver Post, 24 Feb. 2026

But in response to such comments, which reveal grievances about class and celebrity privilege, others say that strangers really have no idea about another person’s net worth. —Martha Ross, Mercury News, 24 Feb. 2026

Advertisement When the virus reactivates, people often report strange nerve pain—tingling, itching, or burning—for a couple days, but have no idea what’s causing it. —Angela Haupt, Time, 23 Feb. 2026

My parents have no idea what’s happening because legacy media is not reporting on anything worth a damn. —Literary Hub, 19 Feb. 2026

Rhymes for have no idea

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