Rational, reasonable and righteous are positive descriptive words. They begin with the letter r.
rich remarkable
Retard is a negative word starting with "r".
A six letter word for a bird of prey starting with the letter R is "raptor."
A word that starts with an R that describes you is responsible.
Ravishing like you
recover
Yes is a positive response. It begins with the letter Y.
rotogravure
Ribbon.
RingRangRollRats
realisticreliablerespectful