grumpy
UK /ˈɡrʌm.pi/ US /ˈɡrʌm.pi/ Syllables: grump-y
Quick answer
Easily annoyed and bad-tempered.
Grumpy describes someone who is in a bad mood and easily annoyed. A grumpy person complains, frowns and answers in short sentences. It is often used in a light, friendly way for tiredness or hunger: you might be grumpy before your morning coffee. It can also be a lasting trait, as in a grumpy old neighbor. The word is informal, so it is perfect for speech and stories but less common in formal writing.
"Dad gets grumpy if he doesn't have his morning coffee."Meanings
- Easily annoyed and in a bad mood.
- Often complaining, as a part of someone's personality.
Example sentences
-
"My dad is always grumpy in the morning."
Level A1, Meaning 1
-
"The baby was tired and grumpy by evening."
Level A2, Meaning 1
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"Don't be so grumpy, it is only a small mistake."
Level A2, Meaning 1
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"The grumpy waiter barely looked at us."
Level B1, Meaning 2
Synonyms and antonyms
Synonyms
Antonyms
Look-alikes and common mistakes
- grouchy : Grouchy means almost the same and is common in American English. Both describe a complaining, bad-tempered mood.
- angry : Angry is stronger and has a cause. A grumpy person is just in a bad mood and may not be able to say why.
Word family and forms
Forms: grumpier, grumpiest
Word partners
Words and phrases that often go with "grumpy".
- grumpy old man
- a grumpy mood
- feel grumpy
- grumpy and tired
- grumpy before breakfast
- a grumpy face
Origin
Grumpy is made from grump plus the ending -y. Grump is an expressive word that was first recorded in the phrase humps and grumps, which meant slights and snubs, and grumpy itself appeared in English in the late 1700s.
Checked against: Wiktionary, the free dictionary, Dictionary.com.
How to remember it
Grumpy rhymes with lumpy and bumpy. Picture a lumpy pillow that left you with a grumpy face.
Test yourself
Which word fits the gap? "My dad is always _____ in the morning."
Answer: grumpy
In your own words, what does "grumpy" mean?
Easily annoyed and bad-tempered.
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Sources and credits
- Wiktionary, the free dictionary (CC BY-SA 4.0) · used for the origin · checked Oct 19, 2026
- Dictionary.com · used for the origin · checked Oct 19, 2026
Last reviewed October 19, 2026. Report a mistake on this page