considerably
adverb OPAL W
  /kənˈsɪdərəbli/
  /kənˈsɪdərəbli/
(rather formal)- much; a lot synonym significantly
- The need for sleep varies considerably from person to person.
 - Interest rates on bank loans have increased considerably in recent years.
 - Pollution levels have considerably reduced in this time.
 - Prices are considerably higher than they were a year ago.
 
Oxford Collocations DictionaryConsiderably is used with these adjectives:- better
 - slow
 - worse
 - …