lonely

adjective
lone*ly \ ˈlōn-lē \
circa 1598{ds||1|a|}
  • being without company : lone
  • cut off from others : solitary
  • not frequented by human beings : desolate

lonely hearts

adjective
lonely hearts \
1949
  • of or relating to lonely persons who are seeking companions or spouses

it's lonely at the top

idiom
it's lonely at the top \
  • —used to say that powerful and successful people often have few friends

plough a lone/lonely furrow

idiom
plough a lone/lonely furrow \
  • to do something alone or do something that no one else will do
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