- Restrictedly Adv
- Restrictively Adv
- Resurgently Adv
- Retentively Adv
- Reticently Adv
- Reticulately Adv
- Retiringly Adv
- Retributively Adv
- Retroactively Adv
- Retrogradely Adv
- Retrogressively Adv
- Retroperitoneally Adv
- Retrorsely Adv
- Retrospectively Adv
- Revealingly Adv
- Revengefully Adv
- Reverentially Adv
- Reverently Adv
- Reversely Adv
- Reversibly Adv
- Revilingly Adv
- Revoltingly Adv
- Rewardingly Adv
- Rhapsodically Adv
- Rhetorically Adv
- Rheumatically Adv
- Rheumatologically Adv
- Rhythmically Adv
- Ribaldly Adv
- Richly Adv
- Ridiculously Adv
- Rifely Adv
- Righteously Adv
- Rightfully Adv
- Rightly Adv
- Rightward Adj Adv
- Rigidly Adv
- Rigorously Adv
- Riotously Adv
- Ripely Adv
- Risibly Adv
- Riskily Adv
- Ritualistically Adv
- Ritually Adv
- Ritzily Adv
- Robotically Adv
- Robustly Adv
- Rockily Adv
- Roentgenographically Adv
- Roentgenologically Adv
- Roentgenoscopically Adv
- Roguishly Adv
- Rollickingly Adv
- Rollingly Adv
- Romantically Adv
- Roomily Adv
- Ropily Adv
- Rosily Adv
- Rotationally Adv
- Rotatively Adv