IMPALPABLE Meaning of IMPALPABLE in English a. 1.Intangible, very fine, delicate, attenuated, not palpable, not to be felt, not perceptible by the touch.2.Imperceptible, shadowy, indistinct, inapprehensible, unsubstantial. Soule. Dictionary of English synonyms. Словарь английских синонимов. 2012