
1) Bear 2) Churl 3) Crank 4) Crosspatch 5) Grumbler 6) Grump 7) Hothead 8) Misanthrope 9) Misanthropist 10) Pill 11) Sorehead 12) Sourpuss
Found on
https://www.crosswordclues.com/clue/grouch

1) Chronic complainer 2) Churl 3) Complainer 4) Crab 5) Crank 6) Crosspatch 7) Curmudgeon 8) Disagreeable person 9) Grump 10) Grumpy person 11) Malcontent 12) Moaner 13) No happy camper 14) Oscar of Sesame Street 15) Oscar, notably 16) Sulky person 17) To be grumpy or irritable 18) To complain 19) Unpleasant person
Found on
https://www.crosswordclues.com/clue/grouch

[
n] - a bad-tempered person 2. [v] - show one`s unhappiness or critical attitude
Found on
http://www.webdictionary.co.uk/definition.php?query=grouch
verb show one`s unhappiness or critical attitude; `He scolded about anything that he thought was wrong`; `We grumbled about the increased work load`
Found on
https://www.encyclo.co.uk/local/20974
No exact match found.