@lemontree My vote is for nonsensical. "The present king of France is not bald" is neither equivalent to "France presently has a king who is not bald", nor to "France does not presently have a king who is bald". But my gut is screaming that there is some level in between "false" and "nonsensical" for sentences of this type. "The present jabberwocky of Utopia is not frumious" seems somehow more nonsensical than anything you might say about the present king of France.