grouch
US /ɡraʊtʃ/
UK /ɡraʊtʃ/

1.
penggerutu, pemarah
a habitually irritable or complaining person
:
•
Don't be such a grouch, it's a beautiful day!
Jangan jadi penggerutu begitu, ini hari yang indah!
•
My grandpa is a bit of a grouch in the mornings.
Kakekku agak penggerutu di pagi hari.