The best replacement for lithosphere is asthenosphere.

The best alternatives to lithosphere are rated as following:
★★★★★  asthenosphere
★★★  crust
★  oceanic lithosphere
★  geosphere
  atmosphere
  biosphere
  part of the mantle

Your alternative for lithosphere is not listed? Suggest!
Speaking about lithosphere, one probably shouldn't forget about asthenosphere.

Other search terms related to lithosphere and their ratings are:
★★★★★ asthenosphere
You have in mind a companion for lithosphere and it is not yet here? Propose!



Google Trends

Scale is based on the average worldwide traffic of lithosphere in all years. Click on graph for more.
lithosphere
asthenosphere
crust