Synonyms for Apt (same or very similar meaning)
WordNet sense 1 (at risk of or subject to experiencing something usually unpleasant):
liable
WordNet sense 2 (has a good chance of being the case or of coming about):
likely
WordNet sense 3 (mentally quick and resourceful):
clever
WordNet sense 4 (having the capacity for thought and reason especially to a high degree):
intelligent
WordNet sense 5 ((usually followed by `to') naturally disposed toward):
disposed, given, minded, tending
WordNet sense 6 ((often followed by `to') having a preference, disposition, or tendency):
inclined
WordNet sense 7 (being of striking appropriateness and pertinence):
apposite, appropriate, pertinent, appropriate
WordNet sense 8 (of an appropriate or pertinent nature):
apropos
From the ODE community, based on WordNet
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