necessarily Meaning, Definition & Usage

1. adverb in an essential manner
   needfully.
   
   • such expenses are necessarily incurred
2. adverb in such a manner as could not be otherwise
   inevitably; needs; of necessity.
   
   • it is necessarily so
   • we must needs by objective
3. adverb as a highly likely consequence
   
   • we are necessarily bound for federalism in Europe

WordNet