Synonyms for Uncaring (same or very similar meaning)
WordNet sense 1 (lacking affection or warm feeling):
unaffectionate
WordNet sense 2 (not giving or reciprocating affection):
unloving
WordNet sense 3 (without care or thought for others):
unthinking, thoughtless
WordNet sense 4 (lacking regard for the rights or feelings of others):
inconsiderate
From the ODE community, based on WordNet
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