間一髪を入れず
Meanings
1
immediately; instantly; without a moment's delay
rare term
Rare variant of 間髪を入れず. Used in literary or emphatic contexts to mean 'without even a hair's breadth of pause'. Learners should prefer 間髪を入れず.
See also: 間髪を入れず
They immediately moved to counterattack without a moment's delay.