melt down

Reactor core failure

To melt down is to reduce something solid to liquid by heating: They melted down the gold coins.

The phrase also describes emotional or mental collapse—when composure gives way to tears, rage, or panic: She melted down when she heard the news.

A nuclear reactor melts down when its core overheats catastrophically.

The noun meltdown covers all these: a toddler's meltdown, a market meltdown, the Chernobyl meltdown.

emotional

tantrum

Uncontrolled display of frustration

sobbing · hysteria · fit · rage · frustration · overwhelm · screaming · tears · toddler · distress

physical

liquefy

Convert to liquid state

heat · forge · foundry · crucible · molten · liquid · puddle · wax · metal · gold

nuclear

reactor

Controlled fission apparatus

containment · core · coolant · Three Mile Island · radioactive · fuel rods · fission · catastrophe · emergency · evacuation

financial

crash

Sudden violent impact

bankruptcy · recession · depression · panic · Wall Street · crisis · portfolio · losses · liquidation · selloff

Categories
Opposites
emotional state/behavior

melt downstay calm

Remain unruffled

keep it together · keep calm · stay cool · hold it together · keep one's cool

physical state change

melt downfreeze

Become solid from cold

solidify · harden · congeal · crystallize · set

system/structural integrity

melt downstabilize

Make firm or constant

hold together · hold up · recover · come online · boot up

Family

meltdown

Familiarity
Top 50,000
Profile
Known to kids · Used worldwide · Timeless · Concrete · Negative · Everyday, not technical · Rated G