名詞 loner:

1. a person who avoids the company or assistance of others
   同義詞：lone wolf, lone hand

形容詞 lone:

1. lacking companions or companionship
   同義詞：alone, lone, lonely, solitary
2. characterized by or preferring solitude
   同義詞：lone, lonely, solitary
3. being the only one; single and isolated from others
   同義詞：lone, lonesome, only, sole, solitary

1. She's been a loner all her life.
   她一生離群索居。

lon.er

n.（名詞）
One who avoids the company of other people.
喜孤獨的人：不愿與別人在一起的人