undersaturated

About 0.07 uses per million words.

Meaning

1. adjective Insufficiently saturated
2. adjective (of igneous rock) Having minerals without free silica

Similar words

subsaturated isosaturated subsaturating underpressurized underregulated undercondensed underventilated insaturable undercompensating underfogged

Often followed by

with in and oil conditions rocks solution water solutions