Synonyms for Attentive (same or very similar meaning)
WordNet sense 1 (taking heed; giving close and thoughtful attention):
thoughtful, paying attention
WordNet sense 2 (showing hovering attentiveness):
solicitous
WordNet sense 3 (paying close attention especially to details):
observant
WordNet sense 4 (giving attention):
heedful, advertent
WordNet sense 5 (giving or marked by complete attention to):
intent
From the ODE community, based on WordNet
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