What does grum mean?
Grum is an uncommon English adjective meaning morose, surly, or sullen. It describes a person whose manner is sour, silent, and unwelcoming, someone who answers with grunts rather than words. The word is now considered obsolete or dialectal. It survives mainly in older literature, in regional British speech, and in dictionaries that record the historical vocabulary of English. Its connotation is negative but mild. It suggests ill humour and brusqueness more than genuine sadness or cruelty, which sets it apart from words such as grim. It also differs from glum, which stresses low spirits. Because it is so rare, a modern writer who uses grum will sound deliberately archaic, which can suit historical fiction, fantasy, or a playful tone. The word is also short and sounds like what it names, a low, clipped, grumbling manner. That makes it appealing to anyone who enjoys the forgotten corners of the language and the many near-synonyms English has built for bad moods.
adjectiveMorose, surly, or sullen in manner. The word is now obsolete or dialectal.
- Morose, surly, or sullen in manner or temper (obsolete or dialectal).
"The old ferryman sat grum and silent at the tiller, answering every greeting with a grunt."
"He gave a grum nod and turned back to his work without a word."
"The innkeeper was a grum fellow, and few travellers lingered over their ale."
Reviewed by Deb Chak, Editor. AI-assisted content curated by RJS Tech Solutions LLP.
Where does grum come from?
Grum is a rare word whose exact origin is uncertain. It is generally thought to be related to the Germanic family that includes grim, and it may have been influenced by the sound of words like grumble. Because the details of its first appearance and development are not securely established, it is best regarded as a Germanic-type word of obscure history.
Related word forms
How grum is actually used
Grum is obsolete or dialectal and is rarely met outside older texts, regional speech, or deliberate archaism. It carries a mildly negative connotation, suggesting a sour or unwelcoming disposition rather than deep sorrow. In modern writing it would read as affected unless the register is intentionally antique.
Easily confused with grum
Glum is the common modern word for sad and gloomy, while grum is a rare archaic or dialectal term for sullen or surly.
A grump is a bad-tempered person (a noun), whereas grum is an adjective describing a morose or surly manner.