Antonyms for Narrow (opposite meaning)
WordNet sense 1 (great in degree):
wide
WordNet sense 2 (vary in order to spread risk or to expand):
broaden, diversify, branch out
WordNet sense 3 (inclined to respect views and beliefs that differ from your own):
broad-minded
WordNet sense 4 (become broader or wider or more extensive):
widen
From the ODE community, based on WordNet
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