startler

One who jolts

Something that startles—a sudden noise, unexpected sight, or surprising piece of news that makes you jump or catches you off guard.

The word is uncommon but transparent: The movie's final twist was a real startler.

Any person or thing capable of producing a startle reaction qualifies.

surprise

bombshell

Shocking sudden revelation

upset · shocker · eye-opener · astonishment · bewilderment · disbelief · ambush · gotcha · double-take · jaw-dropper

fright

ghoul

Undead flesh-eating demon

horror · spook · haunt · scarecrow · nightmare · monster · jump-scare · creep · apparition · poltergeist

alarm

siren

Wailing alert device

  • alertWarning or watchfulness
  • warningAlert about danger
  • hornPointed animal headgear

buzzer · klaxon · detector · sensor · bell · signal · jolt · shake

reflex

flinch

Involuntary retreat from threat

  • gaspSudden sharp breath
  • jumpPropel oneself airborne
  • twitchInvoluntary muscular jerk

recoil · shudder · yelp · scream · adrenaline · fight-or-flight · spasm · lurch

Opposites
effect on emotional state

startlersoother

What brings relief

calmer · tranquilizer · sedative · comforter · reassurer

predictability/expectedness

startlerroutine

Regular sequence of actions

old hat · regularity · same old same old

Phrases
Family

startle, startling, startled, startles, startlingly

Familiarity
Top 500,000
Profile
Used worldwide · Timeless · Everyday, not technical · Rated G