0 the quality of being sudden, unexpected, and sometimes unpleasant:
1 behaviour that seems rude and unfriendly, especially because of using very few words when talking:
We weren't shocked, except by the abruptness of it.
Darkness and light fluctuate with sudden and shocking abruptness.
There's a sharpness and abruptness to him.
His abruptness of manner sometimes reminded me of his father.
She was often criticized for her curtness and abruptness.
Nonetheless, the lake route had perils of its own, as storms could appear with terrifying abruptness in certain seasons.
The abruptness and exhaustiveness of a revolution could be avoided.
