sideways

A footpath near a road.

A byway.

Moving or directed toward one side.

“He gave the ball a sideways kick.”

Positioned sideways (with a side to the front).

“There was a stack of papers in front of each seat at the table, but each stack was sideways.”

Neither moving upward nor moving downward.

“Once we get out of this sideways economy, our figures will more accurately reflect what we're truly capable of.”

Not as planned; towards a worse outcome.

“We realized the project could go sideways very quickly if we didn't get the sales and marketing people on our side.”

(usually with "with") In conflict (with); not compatible (with).

“He was constantly getting sideways with his boss till he got fired.”

With a side to the front.

“He builds houses sideways, with the front door on the side.”

Towards one side.

“A bishop moves only diagonally; a rook, only sideways, forward, and back.  He looked sideways at the new arrival, wondering who she was.”

Askance; sidelong.

Neither upward nor downward.

“The economy has been moving sideways for several months now.”