All will-o'-the-wisp synonyms

noun will-o'-the-wisp

• misbelief — erroneous belief; false opinion.
• misimpression — a faulty or incorrect impression; a misconception or misapprehension.
• idolism — idolatry.
• dream vision — a conventional device used in narrative verse, employed especially by medieval poets, that presents a story as told by one who falls asleep and dreams the events of the poem: Dante's Divine Comedy exemplifies the dream vision in its most developed form.
• hocuspocus — Alternative spelling of hocus-pocus.
• ignis fatuus — Also called friar's lantern, will-o'-the-wisp. a flitting phosphorescent light seen at night, chiefly over marshy ground, and believed to be due to spontaneous combustion of gas from decomposed organic matter.