D defs.my
Entry 1 sense Webster, 1913

Inconceivable

/ĭnˌ-kən-sēv'-əb-əl/ · In·con·ceiv·a·ble · IPA /ɪn.kənˈsiː.və.bl̩/
01 a. Not conceivable; incapable of being conceived by the mind; not explicable by the human intellect, or by any known principles or agencies; i…
  1. 1.
    Not conceivable; incapable of being conceived by the mind; not explicable by the human intellect, or by any known principles or agencies; incomprehensible; as, it is inconceivable to us how the will acts in producing muscular motion.
    “It is inconceivable to me that a spiritual substance should represent an extended figure.” Locke.
    “The inconceivableness of a quality existing without any subject to possess it.” — A. Tucker.