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WordNet-Online 
 Definitions from WordNet
Adverbial unofficially has 2 senses 
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| Definitions from the WebunofficiallyPart of Speech: adverb Definition: Without official authorization or endorsement. Example sentences: 
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| unobtrusive unobtrusively unobtrusiveness unobtusive unobvious unoccupied unoffending unofficial unofficially unoiled unopen unopened unopposable unopposed unoptimized unordered unordinary 
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