American Heritage Dictionary
(3)
Century Dictionary
(6)
GNU Webster's 1913
(2)
WordNet
(2)
Elsewhere on the web
Obdurate has been looked up 943 times, favorited 5 times, listed 84 times, and commented on 6 times.

American Heritage Dictionary (1)
Century Dictionary (2)
Bubble size: how much this word was used in a year
Bubble height: used more or less than expected, vs. all uses evenly distributed
You can expect to see this word a few times a year.
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