definition of
indefinable

[1] #1 indefinable s. [undefinable] not capable of being precisely or readily described; not easily put into words; "an indefinable feeling of terror"; "an abstract concept that seems indefinable". wn

[2] #2 indefinable s. [indescribable, ineffable, unspeakable, untellable, unutterable] defying expression or description; "indefinable yearnings"; "indescribable beauty"; "ineffable ecstasy"; "inexpressible anguish"; "unspeakable happiness"; "unutterable contempt"; "a thing of untellable splendor". wn