adverb (r)

• with strength or in a strong manner(adv.all)

  Example:
  Argues very strongly for his proposal.
  He was strongly opposed to the government.
  

  Antonym:
  weakly
  

  source: wordnet30
• in a powerful manner(adv.all)

  Synonym:
  powerfully
  

  source: wordnet30
• In a strong manner; so as to be strong in action or in resistance; with strength; with great force; forcibly; powerfully; firmly; vehemently; as, a town strongly fortified; he objected strongly.(adverb)

  source: webster1913