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Confined
(of a space) restricted in area or volume; cramped.
"her fear of confined spaces"
synonyms: cramped, constricted, restricted, limited, confining, small, narrow, compact, tight, pinched, squeezed, poky, uncomfortable, inadequate, meagre; More
archaicstrait;
rareincommodious, exiguous, incapacious
"she had a fear of confined spaces"