Synonyms:
- aloof,
- apathetic,
- bored,
- careless,
- detached,
- disinterested,
- distant,
- heedless,
- impassive,
- incurious,
- indifferent,
- insouciant,
- listless,
- mindless,
- phlegmatic,
- regardless,
- stolid,
- unconcerned,
- uninquiring,
- uninterested,
- uninvolved,
- unmindful,
- withdrawn