Main Entry: im·pal·pa·ble

Pronunciation: \(ˈ)im-ˈpal-pə-bəl\

Function: adjective

1 : incapable of being felt by touch <the pulse was impalpable at the wrist> <preoperative localization of impalpable breast lesions—Jane Barrett>
2 : so finely divided that no grains or grit can be felt <an impalpable powder>