from side to side vs sideways

from side to side

• Moving or turning back and forth. 

sideways

• Not as planned; towards a worse outcome. 

• In conflict (with); not compatible (with). 

• Positioned sideways (with a side to the front). 

• Moving or directed toward one side. 

• Neither moving upward nor moving downward. 

• Askance; sidelong. 

• With a side to the front. 

• Neither upward nor downward. 

• Towards one side.