lonesome

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”

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”