This word is acceptable for play in the US & UK dictionaries that are being used in the following games:

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n. An ill-tempered person full of resentment and stubborn notions.

n. A miser.

n. An ill-tempered (and frequently old) person full of stubborn ideas or opinions.

n. An avaricious, grasping fellow; a miser; a niggard; a churl.

n. An avaricious, churlish fellow; a miser; a niggard; a churl.

n. a crusty irascible cantankerous old person full of stubborn ideas

"Hawkowl, I would gladly accede to the label curmudgeon, but I'll never be a snarkling, and I don't do groveling."

Pollyanna   

old person    golden ager    senior citizen    oldster   

miser    niggard    churl   

helpmate    geezer    skinflint    mudlark    churl    land crab    widower    growler    codger    usurer