Cambridge Dictionaries online Cambridge Dictionaries online

The most popular online dictionary and thesaurus for learners of English


English definition of “rotten”


adjective     /ˈrɒt.ən/ US  /ˈrɑː.tən/
B2 decayed : The room smelled of rotten vegetables .Not pleasant to eat or drinkDecaying and staying fresh very bad : rotten weather old-fashioned It was rotten of you to leave without saying goodbye .Serious and unpleasantNot attractive to look atInformal words for bad
(Definition of rotten adjective from the Cambridge Advanced Learner's Dictionary & Thesaurus © Cambridge University Press)
Focus on the pronunciation of rotten

Definitions of “rotten” in other dictionaries

Word of the Day


relating to behaviour between people that is pleasant and friendly, often despite a difficult situation

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