unconcerned

If you're unconcerned, you don't care — you're just not that interested. It's not ideal for the principal of a high school to be unconcerned about bullying.

It can hurt your feelings when you sense that someone's unconcerned about your well being or happiness. A soccer coach might appear to be unconcerned about her players if she yells at them to get up and keep running whenever they fall and hurt themselves. The word can sometimes have a less callous meaning, when you're simply not worried about something: "I'm unconcerned about my SAT score — I'm sure I did fine."

Definitions of unconcerned
1

adj lacking in interest or care or feeling

“the average American...is unconcerned that his or her plight is the result of a complex of personal and economic and governmental actions...beyond the normal citizen's comprehension and control”
“blithely unconcerned about his friend's plight”
Synonyms:
careless
marked by lack of attention or consideration or forethought or thoroughness; not careful
blase
nonchalantly unconcerned
blithe
lacking or showing a lack of due concern
casual, insouciant, nonchalant
marked by blithe unconcern
degage, detached, uninvolved
showing lack of emotional involvement
indifferent
showing no care or concern in attitude or action
untroubled
not beset by troubles or disturbance or distress
Antonyms:
concerned
feeling or showing worry or solicitude
attentive
(often followed by `to') giving care or attention
afraid
filled with regret or concern; used often to soften an unpleasant statement
afraid
feeling worry or concern or insecurity
haunted, obsessed, preoccupied, taken up
having or showing excessive or compulsive concern with something
solicitous
full of anxiety and concern
troubled
characterized by or indicative of distress or affliction or danger or need
show more antonyms...

adj not occupied or engaged with

“readers unconcerned with style”
Synonyms:
uninvolved
not involved

adj easy in mind; not worried

“the prisoner seems entirely unconcerned as to the outcome of the examination”
Synonyms:
untroubled
not beset by troubles or disturbance or distress

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