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lonely

lonely /ˈloʊnli/ adjective
lonelier; loneliest
lonely
/ˈloʊnli/
adjective
lonelier; loneliest
Britannica Dictionary definition of LONELY
[also more lonely; most lonely]
: sad from being apart from other people
: causing sad feelings that come from being apart from other people
: not visited by or traveled on by many people

— loneliness

/ˈloʊnlinəs/ noun [noncount]