one smartest

English as a Second Language English Vocabulary, Grammar and Idioms
1
  1. There is only one smartest.
  2. Raman is only one smartest.
  3. The smartest one is only Raman.
    Please correct and comment.
    Thanks.
2
  1. There is one who is smarter than the others. / There is only one smart one.
  2. Raman is the only smart one.
  3. The smartest one is Raman.
3

I am of the view that if you call a person who scores 100/100 (points) the smartest, your statements (with ‘only’) may be acceptable when nobody else has earned that score.

  1. There is only one who is the smartest.
  2. Raman is the only smartest.
  3. The smartest one is only Raman. (Only Raman is the smartest one)