Lone
Part of speech: adjective
Definition: Solitary; having no companion. Isolated or lonely; lacking companionship. Sole; being the only one of a type. Situated by itself or by oneself, with no neighbours.
Example sentence: I do think - I'm sure I'm the lone voice in saying this - that Iran deserves to be annihilated. I think they're lunatics. I think they're evil.
Lonesome
Part of speech: adjective
Definition: unhappy due to being alone; lonely
Part of speech: noun
Definition: oneself alone
Example sentence: I struggle with myself every day - I am a lonesome person. I talk to my family - and I connect to some people deeply along the way - but I am a restless soul. Singing is the most immediate relief.