Did you know?

Click any word in a definition or example to find the entry for that word


 - definitions and thesaurus

What are red words?

90% of the time, speakers of English use just 7,500 words in speech and writing. These words appear in red, and are graded with stars. One-star words are frequent, two-star words are more frequent, and three-star words are the most frequent.



The thesaurus of synonyms and related words is fully integrated into the dictionary. Click on the thesaurus category heading under the button in an entry to see the synonyms and related words for that meaning.

adjective unhappy pronunciation in American English /ʌnˈhæpi/
Word Forms
  1. 1
    feeling sad or upset
    Why are you so unhappy?
    Her father was a desperately unhappy man.
    Synonyms and related words
    1. a.
      used about situations and experiences that make people feel unhappy
      an unhappy childhood/memory/relationship
  2. 2
    not satisfied
    unhappy about: People are very unhappy about the high ticket prices.
    unhappy with: I’m unhappy with some of the farming methods being used.
  3. 3
    used about something bad that happens because of bad luck
    an unhappy coincidence
    an unhappy series of events

derived words


Synonyms and related words


 unhappy pronunciation in American English noun [uncountable]


used to describe foods which don't contain ingredients such as wheat, dairy products etc …

BuzzWord Article

Open Dictionary

red market

the buying and selling of human organs

add a word


A must for anyone with an interest in the changing face of language. The Macmillan Dictionary blog explores English as it is spoken around the world today.

global English and language change from our blog