"extremely" in the adverb sense
1. highly, extremely
to a high degree or extent favorably or with much respect
"highly successful"
"He spoke highly of her"
"does not think highly of his writing"
"extremely interesting"
2. extremely, exceedingly, super, deathly
to an extreme degree
"extremely cold"
"extremely unpleasant"
"she is super smart"
"the night was deathly cold"
"as a child, I was deathly afraid of snakes"
Source: WordNet® (An amazing lexical database of English)
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