not capable of being precisely or readily described; not easily put into words; an indefinable feeling of terror; an abstract concept that seems indefinable

[ Syn: undefinable ]

defying expression or description; indefinable yearnings; indescribable beauty; ineffable ecstasy; inexpressible anguish; unspeakable happiness; unutterable contempt; a thing of untellable splendor

[ Syn: indescribable , ineffable , unspeakable , untellable , unutterable ]