silent killer

Undetected fatal danger

Silent killer refers to a disease or condition that progresses without obvious symptoms until it causes serious harm or death.

High blood pressure, diabetes, and certain cancers are commonly called silent killers because they develop undetected: Heart disease is a silent killer—get regular checkups.

The phrase extends to any danger that goes unnoticed: Carbon monoxide is the silent killer in poorly ventilated homes.

Related

radon · diabetes · stroke · heart disease · undetected · lurking · insidious · stealth · poison · invisible · deadly · symptomless · undiagnosed · creeping · slow · slow burn · ticking time bomb · assassin

Categories
Opposites
detectability/warning

silent killerwarning sign

Indicator of potential danger

warning signs · red flag · red flags · telltale sign

manner of harm

silent killersudden death

Instant-win tiebreaker format

acute illness · traumatic injury

lethality/harm level

silent killerlife-giver

Source of existence

unsung hero

Family

silent, silence, silently, silencer, silencers, silences, silenced, silencing, kill

Familiarity
Top 100,000
Profile
Used worldwide · Timeless · Negative · Everyday, not technical · Rated PG