Other forms: forlornest; forlorner
Sniff, sniff, boo-hoo...use the adjective forlorn to express loneliness and feeling left out.
When someone is forlorn, it means that they not only feel miserable but simultaneously desolate because they believe they are alone. Forlorn is a very old word in English, and in fact it comes from the Old English word forlesen and means "to lose completely." Synonyms for forlorn all have fairly sad meanings: disconsolate, pessimistic, despairing, despondent, abandoned, depressed, desperate.