We have to abolish all nuclear weapons, because they are deadly to mankind.
Source: tatoeba (23213)
Deadly
//ˈdɛdli//
Synonyms for "deadly" (239 found)
Ranked by relevance and common usage.
Closest matches (48)
Strong matches (72)
cutthroatdamagingdamnablydangerousdeaddeadeneddeath dealingdeath-bringingdeathfuldeathlikedeathly paledeleteriousdemolishingdemolitionarydepredatorydesolatingdestroyingdestructivedetrimentaldeucedly
Show 49 more words
devastatingdevilishlydisadvantageousdisastrousdisserviceabledistressingdistressinglydolorouslydoomfuldreadfuldreadfullydrearydulleerieegregiouslyenvenomedevilexactexcessivelyexcruciatingexcruciatinglyexorbitantlyextravagantlyfatefulfearfulferalferociousflagrantlyfratricidalfrightfulfrightfullyghastlyghostlikeghostlygravegrievouslygrislygruesomehaggardharmfulheartlesshellishlyhomicidalhopelesshorriblehorriblyhowlinghumdrumhurtful
Adjective(1 words)
Adverb(2 words)
Related words (119)
implacableimproperlyinexcusablyinfectiousinfectiveinfernallyinhumaninjuriousinordinatelyinternecineintolerablykillinglamentablylifelesslylividluridmacabremaleficmalevolentmalign
Show 89 more words
malignantmephiticmercilessmiasmalmiasmaticmiasmicmischievousmiserablymortalmortuarynakedlynihilistnihilisticnoisomenoxiousominousopenlypainfullypalepallidperniciouspestiferouspestilentialpiteouslypitilesspoisonouspreciseprejudicialravagingrousingruiningruinousruthlesssadlysavagescathefulself-destructiveshatteringlyshockinglyslayingsomething awfulsomething fiercesorelystaggeringlystodgysubversionarysubversivesuicidaltediousterminalterribleterriblyterrificthumpingtiresometo the deathtorturouslytoxictoxicanttoxiferoustruculenttrueunashamedlyunbearablyuncannyunconscionablyundulyunearthlyunerringunfailingunpardonableunpardonablyvandalicvandalishvandalisticvenenateveneniferousvenenousviciouswanwastefulwastingwearisomewearyingweirdwhackingwhitewitheringwoefully
Adverb(3 words)
Adjective(1 words)
Related word relations
OpenGloss and ConceptNet supply richer edges like generalizations, collocations, and derivations.
Synonyms
7 entriesRelated terms
1 entriesderived
13 entriesderived from
1 entrieshas context
1 entriesrelated to
5 entriessimilar
8 entriesTranslations
80 translations across 32 languages.
Afrikaans
1 entries- dodelik adj (lethal)
Ancient Greek
1 entries- θανάσιμος adj (lethal)
Arabic
1 entries- مُمِيت adj (lethal)
Armenian
1 entries- մահացու adj (lethal)
Asturian
2 entries- mortal adj (lethal)
- mortíferu adj (lethal)
Azerbaijani
2 entries- ölümcül adj (lethal)
- ölümsaçan adj (lethal)
Belarusian
2 entries- смертано́сны adj (lethal)
- смяро́тны adj (lethal)
Bulgarian
4 entries- много скучен adj (very boring)
- много точен adj (very accurate)
- смъртоно́сен adj (lethal)
- уби́йствен adj (lethal)
Catalan
3 entries- letal adj (lethal)
- mortal adj (lethal)
- mortífer adj (lethal)
Czech
3 entries- smrtelný adj (lethal)
- smrtonosný adj (lethal)
- smrtící adj (lethal)
Dutch
1 entries- dodelijk adj (lethal)
Finnish
4 entries- kuolettava adj (lethal)
- mahtava adj (excellent, awesome, cool)
- murhaavan tarkka adj (very accurate)
- tappava adj (lethal)
French
4 entries- fatal adj (lethal)
- létal adj (lethal)
- mortel adj (lethal)
- mortel adj (very boring)
Galician
3 entries- letal adj (lethal)
- mortal adj (lethal)
- mortífero adj (lethal)
German
1 entries- tödlich adj (lethal)
Hebrew
2 entries- קַטְלָנִי adj (lethal)
- קַטְלָנִית adj (lethal)
Icelandic
1 entries- banvænn adj (lethal)
Kriol
2 entries- dedli adj (excellent, awesome, cool)
- dedliwan adj (excellent, awesome, cool)
Latin
3 entries- exitiālis adj (lethal)
- lētālis adj (lethal)
- mortifer adj (lethal)
Latvian
3 entries- nāvējošs adj (lethal)
- nāvīgs adj (lethal)
- nāvīgi adv (Fatally, mortally)
Middle English
1 entries- dedly adj (lethal)
Norwegian Bokmål
1 entries- dødelig adj (lethal)
Norwegian Nynorsk
1 entries- dødeleg adj (lethal)
Old English
1 entries- dēadlīċ adj (lethal)
Pannonian Rusyn
1 entries- смертельни adj (lethal)
Portuguese
4 entries- fatal adj (lethal)
- fatífero adj (lethal)
- letal adj (lethal)
- mortal adj (lethal)
Romanian
4 entries- letal adj (lethal)
- mortal adj (lethal)
- mortal adj (excellent, awesome, cool)
- ucigător adj (lethal)
Russian
4 entries- великоле́пный adj (excellent, awesome, cool)
- смерте́льный adj (lethal)
- смертоно́сный adj (lethal)
- уби́йственный adj (lethal)
Slovak
3 entries- smrteľný adj (lethal)
- smrtiaci adj (lethal)
- smrtonosný adj (lethal)
Spanish
3 entries- letal adj (lethal)
- mortal adj (lethal)
- mortífero adj (lethal)
Swedish
2 entries- dödlig adj (lethal)
- dödlig adj (very accurate)
Ukrainian
2 entries- смерте́льний adj (lethal)
- смертоно́сний adj (lethal)
Sample sentences
33 total sentences available.
The party was perfectly deadly.
Source: tatoeba (50041)
He fell a victim to a deadly disease.
Source: tatoeba (295320)
She was deadly tired.
Source: tatoeba (312067)
Showing 4 of 33 available sentences.
Keep exploring
Data sourced from Wiktionary, WordNet, CMU, and other open linguistic databases. Updated March 2026.