Some adjectives that begin with letter R are:
- Rabbit
- rabid
- raccoon
- race
- racial
- racy
- radar
- Radiant
- radical
- radio
- ragged
- raggedy
- raging
- rainy
- Rakish
- rambunctious
- rampant
- Rancid.
- rapid
- rare
- raspberry
- Rascally,
- raspy
- rational
- ratty,
- raunchy
- Ravishing
- Raw
- Razor-sharp,
- reactionary
- ready
- real,
- realistic
- realized
- reasonable
- reassuring
- rebel
- rebellious,
- recent
- receptive
- reckless
- reclusive
- Recommendable,
- Recommended
- recondite
- record
- Recuperative
- red
- redundant
- Refined,
- reflective
- Refreshing,
- Regal
- regular
- Rejoicing,
- Rejuvenated,
- Rejuvenating
- relaxed
- Relaxing
- Reliable,
- relevant
- Reliable
- religious
- Relieved,
- Relished,
- Relishing
- remarkable
- remaining
- reminiscent
- renaissance
- Renewed,
- Renowned,
- rental
- replete
- Reputable
- reputed
- residential
- Resilient,
- resolute
- resonant
- Resounding,
- Resourceful
- respectable,
- respected
- Respectful
- respective,
- resplendent
- responsible
- Responsive
- Rested
- restful,
- Restive,
- restless
- restricted
- Restorative,
- retail,
- retarded,
- Retentive
- Reticent
- retractable
- retro
- reusable
- Rewarding,
- revealing
- Revered
- Reverent
- revolutionary
- Rhapsodic
- rhetorical
- Rich
- rickety
- Ridiculous
- right
- righteous,
- rightful
- Rigid
- rigorous
- ripe
- Risen
- Risible
- risky
- risque
- ritzy
- rival
- roasted
- Robotic
- robust
- rocking,
- rocky
- Rolled
- Rollicking
- rolling
- Romanian
- romantic
- roomy
- rose
- rosy
- rotatable
- Rotten
- Rotting.
- Rotund
- Rough
- round
- Rousing
- rowdy
- royal
- rubber
- ruby
- rude
- ruddy
- Rueful
- rugged
- Ruinous.
- Ruling
- rumbly
- rumply
- rundown
- runny,
- rural,
- Rushing
- Russian
- rustic
- rusty
- Ruthless
- Rutty.