Frank J. Wilstach, comp. A Dictionary of Similes. 1916.
Unreal
Unreal as a dream.
—Frederick William Faber
Unreal as the shell-heard sea.
—Eugene Lee-Hamilton
Half unreal, like music mingling with a dream.
—John Kenyon
Unreal as a painted city on a stage backdrop swayed by a wandering draft.
—Louis Joseph Vance