up-and-down

adjective

1. moving alternately up and down: the up-and-down swing of levers; an up-and-down tune.
2. having an uneven surface: up-and-down countryside.
3. changeable: up-and-down luck.
4. perpendicular or nearly so: a straight up-and-down hillside.

adjective

1. moving, executed, or formed alternately upwards and downwards
2. mainly US very steep; vertical

adverb, preposition up and down

3. backwards and forwards (along)