All 3 Uses

surreal
in
Flags of Our Fathers
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In their half year at Camp Pendleton, the Marines of the 5th Division had survived fleas, rain, cold, hot sun, bad food, and rattlesnakes; they had learned all that the officers and facilities at the surreal city of men could teach them.†
Chpt 5. *
It must have seemed surreal to them; it does to me, as I try to imagine it: a cadre of grimy, battle-hardened Marines facing mutilation and death in their dirty fox-holes transformed in a moment to a gaggle of naked boys swimming and splashing in the ocean.†
Chpt 13.
It must have felt surreal to the boys.†
Chpt 15.

Definitions:

(1) (surreal)
characterized by fantastic imagery, or combinations of things and events that don't go together
(2) (meaning too rare to warrant focus)