meltdown

1 of 2

noun

melt·​down ˈmelt-ˌdau̇n 

1

: the accidental melting of the core of a nuclear reactor

2

: a rapid or disastrous decline or collapse

3

: a breakdown of self-control (as from fatigue or overstimulation)

melt down

2 of 2

verb

melted down; melting down; melts down

intransitive verb

: to suffer a meltdown : collapse

Synonyms

Verb

• break down
• break up
• crack
• flip (out) [slang]
• freak (out)
• wig (out) [slang]

Examples of meltdown in a Sentence

Noun

fears that an accident could cause meltdown

a company experiencing financial meltdown

After a long day at the beach, our toddler had a major meltdown in the car on the way home.

Verb

rather than melt down, the team strengthened their resolve and ended up winning the game

Recent Examples on the Web

Noun

Children in meltdown mode are typically overwhelmed and lack the skills to process big emotions. —Reem Raouda, Contributor, CNBC, 2 Mar. 2025

Steph Curry scored 56 points against the Orlando Magic last night and sent the basketball world into a meltdown. —Callum Booth, Forbes, 28 Feb. 2025

Verb

Mickeys being dragged to the incinerator chute and melted down for regeneration. —Peter Debruge, Variety, 15 Feb. 2025

The child was having a melt down due not getting his way. —Contributed Content, Twin Cities, 6 Feb. 2025

Word History

First Known Use

Noun

1956, in the meaning defined at sense 1

Verb

1956, in the meaning defined above

Rhymes for meltdown

• adown
• blowdown
• breakdown
• countdown
• crackdown
• crosstown
• downtown
• drawdown
• dropdown
• facedown
• godown
• hometown

Kids Definition

meltdown

noun

melt·​down ˈmelt-ˌdau̇n 

1

: the accidental melting of the core of a nuclear reactor

2

: a rapid or disastrous decline or collapse

a financial meltdown

3

: a breakdown of self-control (as from fatigue or overstimulation)