Synonyms for Acceptable (same or very similar meaning)
WordNet sense 1 (judged to be in conformity with approved usage):
accepted
WordNet sense 2 (conforming to the established language usage of educated native speakers):
received, standard
WordNet sense 3 (meeting requirements):
satisfactory
WordNet sense 4 (meeting adequate standards for a purpose):
fit
From the ODE community, based on WordNet
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