adjective · B2 · Often · both

deadly

смертельный

Meaning of deadly

causing death

Learn deadly with free cards in 30 seconds.

Check vocabulary level

10 minutes a day can add up to 3,000 words a year. Spaced flashcards bring each word back when it is time to remember it.

Free flashcards·10,000+ words in the database·scheduled reviews
How important is this word
B2Often

Useful for a confident vocabulary.

Pronunciation
EN-UK/ˈdɛdli/
EN-US/ˈdɛdli/
deadly
deadly - смертельный
free flashcards
Learn for freeLearn 7 words from "Natural Phenomena"
Active review

How many words can you learn in a year?

If you learn 8-10 new words a day and review them regularly with flashcards, you can cover about 3,000 words in a year.

ZapomniEnglish brings words back at the right time: difficult words appear more often, familiar words less often.

Not sure what pace to start with? Check your vocabulary level and we will suggest words for your level.

We count words you add to learning and review regularly. Active use grows gradually and depends on practice.

How many words you can add to active review
PacePer dayPer yearBest for
Easy3 words≈ 1,100 wordsstarting without pressure
Balanced5 words≈ 1,800 wordssteady growth
Recommended8 words≈ 2,900 wordsaround 3,000 words a year
Fast10 words≈ 3,650 wordsvisible vocabulary growth
Intensive15 words≈ 5,500 wordsstrong motivation

deadly with Russian translation

deadly usage examples

🇷🇺RU🇬🇧EN

Смертельное цунами обрушилось на побережье, вызвав множество жертв.

A deadly tsunami hit the coast, causing many casualties.

🇷🇺RU🇬🇧EN

Этим летом смертельная жара перегрузила больницы по всему региону.

The deadly heatwave this summer stressed hospitals across the region.

Learn by topic

deadly belongs to the topic "Natural Phenomena". Start with a short 7-word set so the word is easier to remember in context.

deadlyсмертельный
seasons of the yearвремена года
springвесна
winterзима
longпродолжительный
endзаканчиваться
temperatureтемпература

deadly synonyms

Related words worth learning together

life-threatening
Specifies that a condition or injury poses an immediate risk to life; commonly used in medical contexts.
mortal
Can mean 'subject to death' or, in set phrases (mortal wound), 'causing death'; more literary/archaic in some uses.
terminal
Used primarily of diseases/stages that are incurable and will lead to death (terminal illness); not used for objects/events.
poisonous
Refers to substances/animals that contain poison; implies potential to harm or kill but not identical to 'deadly'.
dangerous
General word for something that can cause harm; less specific about fatal outcomes than 'deadly'.
Learn 5 related words for free
L
🇬🇧en
life-threatening

Specifies that a condition or injury poses an immediate risk to life; commonly used in medical contexts.

B2Often

She was admitted with life-threatening injuries.

M
🇬🇧en
mortal

Can mean 'subject to death' or, in set phrases (mortal wound), 'causing death'; more literary/archaic in some uses.

C1Rarely

He suffered a mortal wound.

🇬🇧en

Used primarily of diseases/stages that are incurable and will lead to death (terminal illness); not used for objects/events.

B2Often

He was diagnosed with a terminal illness.

P
🇬🇧en
poisonous

Refers to substances/animals that contain poison; implies potential to harm or kill but not identical to 'deadly'.

B2Often

Some mushrooms are poisonous.

🇬🇧en

General word for something that can cause harm; less specific about fatal outcomes than 'deadly'.

A2Very Often

Driving in the storm was dangerous.

C
🇬🇧en
catastrophic

Refers to events with severe, large-scale destructive effects; not specifically 'causing death' but often implies serious loss.

C1Often

The earthquake had catastrophic consequences for the region.

What’s the difference

Related words and lists for deadly

Questions about this word

deadly meaning: what does it mean?

causing death

deadly pronunciation: how do you pronounce it?

deadly is pronounced as /ˈdɛdli/. Audio is available on this page when the word has a recording.

deadly definition and sentence examples: how is it used in a sentence?

A deadly tsunami hit the coast, causing many casualties. Translation: Смертельное цунами обрушилось на побережье, вызвав множество жертв.

Is deadly part of Natural Phenomena vocabulary?

Yes, deadly (смертельный) can be learned in the Natural Phenomena topic. This semantic link helps build related word lists and topic-based practice.

Is deadly part of Weather and Seasons vocabulary?

Yes, deadly (смертельный) can be learned in the Weather and Seasons topic. This semantic link helps build related word lists and topic-based practice.

Audio practiceExamplesSmart repeats

Learn deadly in your vocabulary

Add this word to practice, repeat it with audio, examples and your own word lists.