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“magnitudinous”
magnitudinous (adjective); more magnitudinous, most magnitudinous
Characterizing the quality of significance, greatness in size or amount: Doug had not eaten all day and so he had a magnitudinous appetite in the evening and he had the misconception that he could eat everything on the menu at the restaurant when he had dinner there with his wife that evening!
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magni-, magn-; magna
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