IPA: /ɪmˈpæl.pə.bəl/
KK: /ɪmˈpæl.pə.bəl/
Something that cannot be easily perceived or touched; it is intangible or difficult to understand.
The concept of love can often feel impalpable, as it is not something you can physically touch.
Impable is formed from "in-" (meaning not) and "palpable" (from Latin "palpabilis", meaning able to be touched or felt). The word "impalpable" describes something that cannot be touched or felt, hence intangible.
Think of something that is 'not' ('in-') 'able to be touched' ('palpable') — that's why impalpable means something you cannot physically feel.