Cambridge Dictionaries online Cambridge Dictionaries online

The most popular online dictionary and thesaurus for learners of English


English definition of “fantastic”


adjective     /fænˈtæstɪk/
GOOD informal A2 very good: He looks fantastic in that suit . I've had a fantastic time .Extremely goodInformal words for goodGood, better and bestQuite good, or not very good
LARGE informal A fantastic amount or number of something is very large : They're making fantastic amounts of money .EnormousBig and quite big
STRANGE very strange and probably not true : fantastic stories about monsters and witches Strange, suspicious and unnatural
(Definition of fantastic adjective from the Cambridge Learner's Dictionary © Cambridge University Press)

Definitions of “fantastic” in other dictionaries

Word of the Day


to pour liquid slowly over something, especially in a thin line or in small drops

Word of the Day


Read our blog about how the English language behaves.

Learn More

New Words

Find words and meanings that have just started to be used in English, and let us know what you think of them.

Learn More