Thesaurus
To save this word, you'll need to log in.
Synonyms & Antonyms of killer
(Entry 1 of 2)
1
a dull, unpleasant, or difficult piece of work
- weeding out that overgrown garden is going to be a killer
Synonyms for killer
Words Related to killer
Near Antonyms for killer
2
a person who kills another person
- gunned down by hired killers
Synonyms for killer
Words Related to killer
killer
adjectiveSynonyms & Antonyms of killer (Entry 2 of 2)
1
likely to cause or capable of causing death
- killer viruses that claimed millions of lives
Synonyms for killer
Words Related to killer
Near Antonyms for killer
Antonyms for killer
2
requiring considerable physical or mental effort
- a killer exercise program guaranteed to whip you into shape
Synonyms for killer
- arduous,
- Augean,
- backbreaking,
- challenging,
- demanding,
- difficult,
- effortful,
- exacting,
- formidable,
- grueling
- (or gruelling),
- hard,
- heavy,
- hellacious,
- herculean,
- laborious,
- moiling,
- murderous,
- pick-and-shovel,
- rigorous,
- rough,
- rugged,
- severe,
- stiff,
- strenuous,
- sweaty,
- tall,
- testing,
- toilsome,
- tough,
- uphill
Words Related to killer
Near Antonyms for killer
Antonyms for killer
- cheap,
- easy,
- effortless,
- facile,
- light,
- mindless,
- simple,
- soft,
- undemanding
Keep scrolling for more
Keep scrolling for more
Comments on killer
What made you want to look up killer? Please tell us where you read or heard it (including the quote, if possible).
Test Your Vocabulary
Homophone Quiz
- In order to judge how people felt, the senator's office hired a firm to take a
______.
Can you spell these 10 commonly misspelled words?
TAKE THE QUIZ
Test Your Knowledge - and learn some interesting things along the way.
TAKE THE QUIZLove words? Need even more definitions?
Merriam-Webster unabridgedWords at Play
Ask the Editors
Share killer
Time Traveler for killer
The first known use of killer was in the 15th century
See more words from the same century