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to knock flat

to knock flat

1 7.4
To surprise someone very much so they cannot react
  • phrasal verb
translation icon : dejar atónito
  • The surprising news about her promotion knocked me flat with disbelief.
  • knocked him flat on his back

She's she's well trained and within a minute I'd done like a round out round house kick and just knocked her flat out.

Examples

  • Seeing the breathtaking view from the top of the mountain knocked him flat with awe.

  • When the teacher revealed the final exam results, the entire class was knocked flat.

  • You just knocked him flat.

  • Tim was knocked flat on the seat.

    Fiction book (1990)
  • Anyone with a feather handy could have knocked me flat on the floor with it.

    Fiction book (1995)
  • - Someday someone's gonna knock you flat.

  • Someone slammed into Jankowski from behind and knocked him flat.

    Fiction book (1996)
  • Knocked me flat, sir.

  • Jamie wrenched out of Dougal's grasp and hit the lad in the stomach, knocking him flat.

    Fiction book (1991)
  • In a single move, Batman spins and lets the weapon fly into the pistoled assailant, knocking him flat.

    Fiction book (1995)

Synonyms

to hit
vsto knock flat
2.8

To suddenly make someone feel a strong emotion

is sudden shock that specifically overwhelms and leaves one stunned
to whack
vsto knock flat
250 5.5

To hit someone or something hard so it makes a loud sound

is usually emotional or surprising overwhelm rather than physical striking force
to knock out
vsto knock flat
  • NSFW
210 4.3

To make someone unconscious by a hit, illness, or being very tired

is sudden shock that overwhelms mentally rather than causing physical unconsciousness
to rock
vsto knock flat
107 4.4

To cause a sudden strong shock or upset to people

is sudden shock that also overwhelms and immobilizes the person emotionally
to knock down
vsto knock flat
93 3.0

Use force to make someone or something fall to the ground

is sudden emotional overwhelm that stuns without physical toppling
to floor
vsto knock flat
15 6.6

To surprise someone so much they cannot react

is a deeper overwhelm that often leaves longer stunned inability to act
to deck
vsto knock flat
  • Informal
14 8.2

To hit someone so hard that they fall to the ground

is sudden shock that overwhelms and stuns without necessarily causing a fall
to stun
vsto knock flat
11 4.0

To make someone unconscious or dazed for a short time by a hit

is more about sudden emotional overwhelm that stuns rather than physical unconsciousness
to knock cold
vsto knock flat
8 7.9

To make someone unconscious by hitting them

is sudden overwhelming shock that stuns mentally rather than causing loss of consciousness
to strike dumb
vsto knock flat
2 7.2

To make someone unable to speak because they are very surprised or shocked

is broader sudden overwhelm that stuns generally, not only stopping speech
to knock for a loop
vsto knock flat
  • Informal
1 8.7

To surprise someone very much and leave them speechless

is sudden overwhelming shock that stuns and leaves someone unable to react
to knock over with a feather
vsto knock flat
  • Informal
1 8.8

To be so surprised that you almost cannot react

is a strong sudden shock that also overwhelms and stuns the person
to hit like a ton of bricks
vsto knock flat
  • Informal
1 8.0

To feel a sudden strong shock or surprise

is the same sudden shock but with extra sense of overwhelming defeat
8.2

To feel sudden shock or surprise

is the sudden shock that also incapacitates someone mentally or emotionally
to knock into the middle of next week
vsto knock flat
  • Informal
9.9

To hit or shock someone so they feel dazed

is sudden overwhelming shock that need not involve physical force and stuns more
to knock down for the count
vsto knock flat
  • Informal
8.2

To be hit so hard that you fall and cannot get up

is sudden overwhelm that stuns and momentarily prevents reaction rather than lasting defeat
to knock the living daylights out of
vsto knock flat
  • Offensive
9.9

To hit someone very hard or to shock someone very much

is sudden overwhelming shock that focuses on emotional stun rather than physical harm

Antonyms

197 3.7

To make something steady so it stops moving or falling

172 1.0

To make someone feel less upset or in pain

How Stunned

to floor
15 6.6
to knock flat
1 7.4
to stun
11 3.0
to astonish
13 3.5
to surprise
1.0

Surface Forms

knock flat infinitive
knocked flat past participle
knocking flat present participle
knocks flat third person singular

Morphology

knock + flat

The sense derives clearly from the literal meanings: 'knock' (to hit or strike) plus 'flat' (completely down/lying flat) gives the image of being knocked down, so learners who know both words can plausibly infer a sense of being overwhelmed or stunned. However, the shift from a physical hitting to a metaphorical shock or emotional overwhelm is an extension that is not fully predictable without exposure, so it is only partially transparent.

Etymology

Knock flat comes from the image of someone being knocked so hard they lie flat on the ground. That's why it now means 'shocked' or 'stunned', as if you were hit and cannot react.