Home › Words › H › hypnophobiahypnophobiahypnophobia · noun — the fear of falling asleep.Definition from Wiktionary (CC BY-SA 3.0).EtymologyFrom hypno- + -phobia.nounThe fear of falling asleep.Definitions & examples from Wiktionary (CC BY-SA 3.0).Words closest in meaningBy meaning, not spelling — each word's AI semantic fingerprint, nearest first.somniphobia 78% match — Fear of falling asleep; fear of a disaster while sleeping. vs hypnophobia →clinophobia 71% match — fear of going to bed vs hypnophobia →hypnophobic 71% match — Exhibiting or relating to hypnophobia. vs hypnophobia →oneirophobia 71% match — The fear of dreams. vs hypnophobia →somniphobic 67% match — Relating to somniphobia. vs hypnophobia →somniphobe 66% match — One who suffers from somniphobia. vs hypnophobia →phobophobia 64% match — The fear of fear; the fear of developing a phobia. vs hypnophobia →antihypnotic 60% match — Tending to prevent sleep. vs hypnophobia →