1. Far beyond what is usual in magnitude or degree
   "an exceptional memory"
   - exceeding, olympian, prodigious, surpassing 
2. Surpassing what is common or usual or expected
   "exceptional kindness"
   - especial, particular, special 
3. Deviating widely from a norm of physical or mental ability; used especially of children below normal in intelligence
   "special educational provisions for exceptional children"

See also: abnormal, exception, exceptionally, extraordinary, uncommon

Encyclopedia: Exceptional

• grade point average
• grade school
• grade separation
• grade-appropriate
• grade-constructed
• graded
• grader
• gradient
• grading
• gradual
• gradualism
• graduality
• gradually
• gradualness
• graduand
• graduate
• graduate nurse
• graduate school
• graduate student
• graduated
• graduated cylinder
• graduated table
• graduated tax
• graduating class
• graduation