1) Conceived of 2) Conjured up in the mind 3) Dreamt 4) Fanciful 5) Formed a mental picture 6) Imaginary 7) Mentally conjured up 8) Not in reality 9) Notional 10) Played make-believe 11) Thought 12) Unreal 13) Visualized Found on https://www.crosswordclues.com/clue/imagined