gaunt
The gauntness of his face made him look older.
She has a gauntness which is probably the product of fitness as much as fatigue.
There was a strange gauntness to his face.

SMART Vocabulary: related words and phrases

Not fit & healthy
be a shadow/shell of your former selfidiom
be at death's dooridiom
bed
clinically obese
complain of something
critical list
frailty
gaunt
groggy
hollow
hollow-eyed
infirm
poorly
rough
run someone/something down
take to your bedidiom
undernourishment
unhealthful
unhealthily
wan

You can also find related words, phrases, and synonyms in the topics:

Animal physiology: thin or slender (of people)

Examples of gauntness

gauntness
He had taken off an overcoat while his host was opening the champagne, and evening clothes accentuated a mature gauntness of body and limb.
From Project Gutenberg
The clean-shaven face was thin to gauntness, and the dark eyes were unnaturally bright and wistful.
From Project Gutenberg
He had grown in stature, but the gauntness of his face made his coarse features stand out so, that he was almost repulsive.
From Project Gutenberg
The high desert stretched vastly, far, far, far before, behind, on either side, the parched gauntness of its daytime aspect assuaged and evanescent.
From Project Gutenberg
A three days' beard heightened the gauntness of his face; he did not move when his padrona announced her.
From Project Gutenberg
His gauntness was more pronounced than it ever had been before.
From Project Gutenberg
There was a shocking gauntness about the food-lines.
From Project Gutenberg
Tall, it was thin to the point of gauntness.
From Project Gutenberg
She hadn't been prepared for this altered man with his limp and his gauntness and his strained intensity.
From Project Gutenberg
He had also known adversity, she deduced from the gauntness of his face and a certain grimness of expression.
From Project Gutenberg
In the few hours that had passed he seemed to have wasted to a startling gauntness.
From Project Gutenberg
He was probably not more than forty years old, but his gauntness made him look older.
From Project Gutenberg
She also saw how worn his face was, and the gauntness of his frame, and her compassion was stronger than her pride.
From Project Gutenberg
Then she noticed the gauntness of his bronzed face and how lean he was.
From Project Gutenberg
His face had lost something of its hint of gauntness, even before his chief engineer had swung down from the saddle.
From Project Gutenberg
These examples are from corpora and from sources on the web. Any opinions in the examples do not represent the opinion of the Cambridge Dictionary editors or of Cambridge University Press or its licensors.