sidelong

1. not comparableDirected to the side; sideways.

   He cast me a sidelong glance.

2. not comparableSlanting or sloping; oblique.
3. not comparableIndirect; suggestive; not straightforward.

   She made some sidelong remarks about his manhood.

4. not comparableAlong the side of something.

   1 more example

   The passenger train was signalled from one of the west end bay platforms along the Down South Line; as it passed through a crossover to the Up South Line the freight train, which had been travelling slowly to the Up South Line, over-ran the signal protecting the crossover and came into sidelong collision with it.

   1961 February, “Talking of Trains: Collision at Newcastle”, in Trains Illustrated, page 76

comparative more sidelong · superlative most sidelong

1. Towards the side; sideways.
2. obliquely