Definitions

unhealthy

[uhn-hel-thee] / ʌnˈhɛl θi /

ADJECTIVE

sick

Synonyms

STRONGEST

delicate unsound

WEAK

ailing below par debilitated diseased down dragging feeble frail ill in a decline in ill health in poor health infirm invalid laid low out of action out of shape peaked poorly run down shaky sickly unwell weak

Antonyms

STRONGEST

strong

WEAK

good healthy well

ADJECTIVE

very bad in effect on well-being

Synonyms

STRONGEST

corrupt corrupting dangerous degrading detrimental harmful hazardous negative noxious perilous perverse poisonous risky undesirable unsanitary unsound

WEAK

baneful chancy degenerate deleterious demoralizing insalubrious jeopardous morbid nefarious noisome rotten treacherous unhealthful unwholesome villainous virulent wicked

Antonyms

STRONGEST

certain good guarded helpful pure safe secure sound wholesome

WEAK

healthy strong well

Example Sentences

Examples are provided to illustrate real-world usage of words in context. Any opinions expressed do not reflect the views of Dictionary.com.

A new term has been coined by dermatologists and academics: cosmeticorexia, which they define as having an unhealthy obsession with achieving "flawless" skin from a young age, leading to an obsessive use of cosmetic products.

From BBC • Jun. 6, 2026

Even unhealthy or bad relationships are not bad 100% of the time.

From MarketWatch • Jun. 6, 2026

Many ultraprocessed foods are unhealthy because they are high in added sugars, sodium and saturated fat.

From The Wall Street Journal • Jun. 3, 2026

These unhealthy treats have contributed to modifying a diet usually made up of fruit, vegetables and seeds.

From Barron's • May 22, 2026

But every geek has had a brush with a parent, a teacher, a clergyman, someone who’s branded his or her Net passion dangerous, unhealthy, addictive, or bizarre.

From "Geeks: How Two Lost Boys Rode the Internet Out of Idaho" by Jon Katz

unhealthy

Example Sentences

Related Words