я понятия не имел

I had no idea

→ я
phrase Uncommon #24,167
I had no idea Used to say you did not know something at all. The form changes for speaker gender and time; the examples show the masculine past tense.
RU: Я понятия не имел, что ты уже здесь.
EN: I had no idea you were already here.

Я понятия не имел, сколько там будет народа.

I had no idea how many people there would be.

Я понятия не имел, куда идти.

I had no idea where to go.

Я понятия не имел, как он популярен в Азии.

I had no idea how popular he was in Asia.

— Марти Великолепный (2025)

Я понятия не имел, сколько там будет человек.

I had no idea how many people would be there.

Я понятия не имел, кто эта женщина, клянусь вам.

I had no idea who that woman was, I swear to you.

— Конклав (2024)