совсем недолго

for a very short time

→ совсем
phrase Rare #43,159
for a very short time Used for a short duration; with осталось, it means “not much longer” or “not long to go.”
RU: Мы поговорили совсем недолго.
EN: We talked for a very short time.

Том совсем недолго жил в Бостоне.

Tom didn't live in Boston for very long.

Возможно, ждать им осталось совсем недолго.

Perhaps they don't have long to wait.

— Прокол (1981)

Да, Джоанна, но совсем недолго, так как он приехал всего несколько минут назад.

Yes, Joanna, but not for very long, since he arrived only a few minutes ago.

— Прокол (1981)

Осталось совсем недолго.

It won't be much longer.

— Властелин колец: Две крепости (2002)