improbable   (Sound)

The adj improbable has 3 senses

• improbable, unlikely -- (not likely to be true or to occur or to have occurred; "legislation on the question is highly unlikely"; "an improbable event")


• improbable, unbelievable, unconvincing, unlikely -- (having a probability too low to inspire belief)


• improbable, marvelous, marvellous, tall -- (too improbable to admit of belief; "a tall story")