intransitive verb
1. : to turn and look at something in the direction from which one is coming or from which one's face is turned
looked back and saw their pursuers gaining upon them
2. : to turn one's mind or thoughts to the past : reflect on past events
inclined to look back to their African origins — Oscar Handlin
an era which the future will look back upon as another golden age — New Englander
when I look back on my tolerance at the time — O.S.J.Gogarty
3. : to show signs of retrogression or interrupted progress — usually used in the negative
from that time the industry has never looked back — L.D.Stamp