Synonyms of concussion

concussion

noun

kən-ˈkə-shən 

1

as in collision

a forceful coming together of two things

the concussion of the two football players sent them both to the ground

Synonyms & Similar Words

• collision
• shock
• crash
• impact
• jolt
• thump
• pounding
• bump
• slam
• blow
• impingement
• encounter
• slap
• kick
• contact
• strike
• wallop
• jar
• hit
• jounce
• knock
• punch
• smash
• hammering
• thrashing
• buffet
• rap
• bashing
• battering
• licking
• pummelling
• pummeling
• meeting
• touch
• bludgeoning
• clobbering
• lambasting

2

as in crash

the violent coming together of two bodies into destructive contact

the theory that such a concussion, by a giant asteroid or comet millions of years ago, led to the extinction of the dinosaurs

Synonyms & Similar Words

• collision
• crash
• accident
• wreck
• smashup
• pileup
• crack-up
• smash
• destruction
• demolishment
• ruin

Synonym Chooser

How is the word concussion different from other nouns like it?

Some common synonyms of concussion are collision, impact, and shock. While all these words mean "a forceful, even violent contact between two or more things," concussion when not in technical use, often suggests the shattering, disrupting, or weakening effects of a collision, explosion, or blow.

bystanders felt the concussion of the blast

When is it sensible to use collision instead of concussion?

The words collision and concussion can be used in similar contexts, but collision implies the coming together of two or more things with such force that both or all are damaged or their progress is severely impeded.

the collision damaged the vehicle

When can impact be used instead of concussion?

The synonyms impact and concussion are sometimes interchangeable, but impact may be used to imply contact between two things, at least one of which is impelled toward the other.

the glass shattered on impact with the floor

When is shock a more appropriate choice than concussion?

The words shock and concussion are synonyms, but do differ in nuance. Specifically, shock often denotes the effect produced by a collision and carries the suggestion of something that strikes or hits with force.

the shock of falling rocks

Example Sentences

Recent Examples of concussion

According to the promotion, a five-stage protocol will be used to determine if a fighter is fit to return to action after a concussion. —Greg Rosenstein, NBC news, 19 July 2025

The Sheriff's Department told the Times that a 5-year-old sustained a cut to his head, an 11-year-old girl was airlifted to a hospital with a broken leg, a 22-year-old man had bruises on his head and arms and a 73-year-old man sustained a concussion. —Charlotte Phillipp, People.com, 11 July 2025

The other suffered a concussion and was treated and released from the hospital. —Justin Muszynski, Hartford Courant, 11 July 2025

Five people were injured during the incident -- an 11-year-old girl with a broken leg, a 5-year-old boy with cuts and a head laceration, a 22-year-old man with abrasions to his head and a 73-year-old man who sustained a concussion, the sheriff's department said in a statement. —Alex Stone, ABC News, 10 July 2025