Boris smiled almost imperceptibly while listening to his mother.
It passes westwards imperceptibly into the Ardennes.
Towards the end of this conversation the evangelist passes imperceptibly from reporting the words of the Lord into an interpretation or amplification of them, and in language which recalls the prologue he unfolds the meaning of Christ's mission and indicates the crisis of self-judgment which necessarily accompanies the manifestation of the Light to each individual.
The universal experience of ages, showing that children do grow imperceptibly from the cradle to manhood, did not exist for the countess.
These pass imperceptibly into - (5) the arid desert, where rainfall is at a minimum, and the only plants are those modified to subsist with the smallest supply of water.