From Longman Dictionary of Contemporary Englishextremelyex‧treme‧ly /ɪkˈstriːmli/ ●●● S2 W2 adverb [+adj/adverb] VERYto a very great degree Earthquakes are extremely difficult to predict. I’m extremely sorry to have troubled you.
Examples from the Corpus
extremely• The conference was extremely badly organized.• Manyare extremely colorful, many are drab.• Quitting my old job was an extremely difficult decision.• The fungus is extremely difficult to get rid of.• There was little point in remaining in the transit room; the onward flight to Changsha was an extremely dubious bet.• But, once established, the service class is extremely effective in ensuring that its offspring also joins this elite.• She felt as if she had taken an extremely exacting examination.• Virtually all empty dwellings were now sold with vacant possession, at extremely high prices.• Regular visits to the doctor are extremely important for pregnant mothers.• Some bands are extremely keen to sign with a respected manager who insists on collecting the artist's money.• It is extremely lethal, killing more than half the women in whom it is diagnosed within five years. 