"apathetic" in the adjective sense
1. apathetic
showing little or no emotion or animation
"a woman who became active rather than apathetic as she grew older"
2. apathetic, indifferent
marked by a lack of interest it is simply indifferent"
"an apathetic audience"
"the universe is neither hostile nor friendly
Source: WordNet® (An amazing lexical database of English)
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