Finding
loneliness Audio
lone·li·ness [ lohn-lee-ness ]
Subclass of:
Social isolation; Emotions
Definitions related to loneliness:
  • Sadness resulting from being isolated or alone.
    NCI
    U.S. National Cancer Institute, 2021
  • The state of feeling sad or dejected as a result of lack of companionship or being separated from others.
    NLM Medical Subject Headings
    U.S. National Library of Medicine, 2025
  • Loneliness, distressing experience that occurs when a person's social relationships are perceived by that person to be less in quantity, and especially in quality, than desired. The experience of loneliness is highly subjective; an individual can be alone without feeling lonely and can feel lonely...
    Encyclopedia Britannica
    Encyclopedia Britannica, Inc., 2025
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This content should not be used in place of medically-reviewed decision support reference material or professional medical advice. Some terms may have alternate or updated definitions not reflected in this set. The definitions on this page should not be considered complete or up to date.