1. In an obligatory manner
   "this rule applies obligatorily" 
2. In a manner that cannot be evaded
   - compulsorily, mandatorily

See also: obligatory

Antonym: optionally

Encyclopedia: Obligatorily

• no-par stock
• no-par-value stock
• no-parking zone
• no-see-um
• no-show
• no-side
• no-trump
• no-win
• no-win situation
• NOAA
• Noachian
• Noachian deluge
• Noah
• Noah and the Flood
• Noah Webster
• Noah's flood
• Noam Chomsky
• nob
• Nob Hill
• nobble
• nobby
• Nobel
• Nobel Laureate
• Nobel prize
• Nobelist