- imperceptible, esp to the touch: impalpable shadows
- difficult to understand; abstruse
WordReference Random House Learner's Dictionary of American English © 2026
im•pal•pa•ble /ɪmˈpælpəbəl/USA pronunciation
adj.
WordReference Random House Unabridged Dictionary of American English © 2026- incapable of being felt;
intangible:Impalpable gloom fell over the room. - difficult for the mind to grasp easily:impalpable theories.
im•pal•pa•ble
(im pal′pə bəl),USA pronunciation adj.
im•pal′pa•bil′i•ty, n.
im•pal′pa•bly, adv.
- not palpable;
incapable of being perceived by the sense of touch;
intangible. - difficult for the mind to grasp readily or easily:impalpable distinctions.
- (of powder) so fine that when rubbed between the fingers no grit is felt.
- im-2 + palpable 1500–10
im•pal′pa•bly, adv.
Collins Concise English Dictionary © HarperCollins Publishers::
impalpable /ɪmˈpælpəbəl/ adj
'impalpable' also found in these entries (note: many are not synonyms or translations):