gaunt
adj
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Lean, angular, and bony.
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Haggard, drawn, and emaciated.
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Bleak, barren, and desolate.
pencil-necked
adj
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Having a very thin neck.
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Insubstantial; weak.
How often have the words gaunt and pencil-necked occurred in a corpus of books? (source: Google Ngram Viewer )