1. With strength or in a strong manner
   "argues very strongly for his proposal"; "he was strongly opposed to the government" 
2. In a powerful manner
   - powerfully

See also: strong

Antonym: weakly

• dark lantern
• dark matter
• dark meat
• dark red
• dark-blue
• dark-brown
• dark-coated
• dark-colored
• dark-coloured
• dark-eyed junco
• dark-field microscope
• dark-fruited
• dark-gray
• dark-green
• dark-grey
• dark-haired
• dark-skinned
• dark-spotted
• darken
• darkened
• darkener
• darkening
• darkey
• darkie
• darkish