Deadly synonyms

Deathly, dangerous, antagonistic, accurate, absolutely, arid, ashen, and deathlike are all synonyms for deadly. Harmless and beneficial are antonyms of deadly. And here are 132 another word for deadly.

Another word for deadly

1. lethal

  • Dangerous
  • Death-dealing
  • Deathly
  • Deleterious
  • Destructive
  • Detrimental
  • Fatal
  • Harmful
  • Incurable
  • Injurious
  • Lethal
  • Life-threatening
  • Malignant
  • Mephitic
  • Mortal
  • Nocuous
  • Noxious
  • Pernicious
  • Poisonous
  • Terminal
  • Toxic
  • Unhealthy
  • Untreatable
  • Baneful

2. irreconcilable

  • Antagonistic
  • Bitter
  • Fierce
  • Grim
  • Hostile
  • Implacable
  • Irreconcilable
  • Merciless
  • Mortal
  • Murderous
  • Pitiless
  • Relentless
  • Remorseless
  • Savage
  • Unappeasable
  • Unforgiving
  • Unrelenting
  • At each other's throats

3. impeccable

  • Accurate
  • Assured
  • Correct
  • Direct
  • Exact
  • Faultless
  • Flawless
  • Impeccable
  • Inch-perfect
  • On target
  • On the mark
  • Perfect
  • Precise
  • Spot on
  • Sure
  • True
  • Unerring
  • Unfailing
  • Bang on

 4. absolutely

  • Absolutely
  • Beyond
  • Completely
  • Dead
  • Entirely
  • Every inch
  • Excessive
  • Extreme
  • Fully
  • Great
  • Immoderate
  • In all respects
  • In every respect
  • In every way
  • Intense
  • Marked
  • One hundred per cent
  • Perfectly
  • Quite
  • Thoroughly
  • To the core
  • To the hilt
  • Totally
  • Utterly
  • Wholly
  • Inordinate

5. boring

  • Arid
  • Bland
  • Boring
  • Dreary
  • Dry as dust
  • Dry
  • Dull as ditchwater
  • Dull
  • Dullsville
  • Flat
  • Frustrating
  • Humdrum
  • Irksome
  • Lacking variation
  • Lacking variety
  • Lacklustre
  • Mind-numbing
  • Monotonous
  • No great shakes
  • Not up to much
  • Nothing to write home about
  • Samey
  • Soul-destroying
  • Tedious
  • Tiresome
  • Tiring
  • Trying
  • Uneventful
  • Unexciting
  • Uninspiring
  • Uninteresting
  • Unrelieved
  • Unstimulating
  • Wearisome
  • Ornery

6. ashen

  • Ashen
  • Deathlike
  • Deathly
  • Ghostly
  • Pale
  • Pallid
  • Wan
  • White
  • Ghastly

Deadly synonyms statistics

The adjective "deadly" has a variety of synonyms that differ in length. 2 synonyms with 3 letters, 8 synonyms with 4 letters, 10 synonyms with 5 letters, 16 synonyms with 6 letters, 18 synonyms with 7 letters, 9 synonyms with 8 letters, 19 synonyms with 9 letters, 15 synonyms with 10 letters, 12 synonyms with 11 letters, 3 synonyms with 12 letters, 4 synonyms with 13 letters, 4 synonyms with 14 letters, 1 synonym with 15 letters, 2 synonyms with 16 letters, 1 synonym with 17 letters, and 1 synonym with 23 letters, for a total of 125 synonyms for deadly.

Deadly sentences

The snake’s bite was deadly.

He survived a deadly car crash.

The disease proved to be deadly.

She faced a deadly challenge ahead.

The storm caused deadly flooding.


Similar to deadly

Word Opposites Synonyms
Steady Unstable, loose, shaky Stable, balanced
Undoubtedly Possibly, doubtfully, questionably Doubtless, indubitably
Badly Well, slightly Poorly, incompetently
Kindly Unkindly, harshly Benevolently, good-naturedly
Rapidly Slowly, gradually Quickly, fast
Dead Alive, living Deceased, expired
Endeavour Neglect, idleness Try, attempt
Already Not yet, never By this/that time, by now/then
Widespread Local, limited General, extensive
Idea Fact, reality Plan, design
Lead Follow, subordinate Guide, conduct
Ready Unprepared, taken by surprise Prepared, all set
Death Birth, life Demise, dying
Instead As well, as well as As an alternative, as a substitute
Friendly Unfriendly, hostile Affectionate, affable
Ideal Imperfect, subpar Perfect, best possible