suksmah
sūkṣmaḥ — subtle;
SB 3.8.11
sthūla-sūkṣmaḥ — fat and skinny;
SB 5.11.7
sūkṣmaḥ — very, very fine (not seen by the material eyes);
SB 6.16.9
pañca-sūkṣmaḥ — five fine;
CC Adi 14.15