Adjective
1. being the only one; single and isolated from others;
"the lone doctor in the entire county""a lonesome pine""an only child""the sole heir""the sole example""a solitary instance of cowardice""a solitary speck in the sky"2. marked by dejection from being alone;
"felt sad and lonely""the loneliest night of the week""lonesome when her husband is away""spent a lonesome hour in the bar"