maximum

Adjective

• the greatest or most complete or best possible
  • maximal expansion
    
  • maximum pressure
    

Noun

• the point on a curve where the tangent changes from positive on the left to negative on the right

• the greatest possible degree
  • he tried his utmost
    

• the largest possible quantity

Related words

• Synonyms: 
  maximal , utmost , uttermost , level best , upper limit
• Antonyms: 
  minimal , minimum , lower limit