1. To a great extent or degree
   "painting the room white made it seem substantially larger"; "the price went up substantially"
   - well, considerably 
2. In a strong substantial way
   "the house was substantially built"

See also: substantial

• atmospheric static
• atmospherical
• atmospherically
• atmospherics
• atole
• atoll
• atom
• atom smasher
• atom-bomb
• atomic
• atomic bomb
• atomic clock
• atomic cocktail
• atomic energy
• Atomic Energy Commission
• atomic explosion
• atomic mass
• atomic mass unit
• atomic number
• atomic number 1
• atomic number 10
• atomic number 100
• atomic number 101
• atomic number 102
• atomic number 103