- Receptively Adv
- Recessively Adv
- Reciprocally Adv
- Recklessly Adv
- Recognisably Adv
- Recognizably Adv
- Reconcilably Adv
- Reconditely Adv
- Recreantly Adv
- Recreationally Adv
- Rectally Adv
- Rectangularly Adv
- Recte Adv
- Rectifiably Adv
- Rectilienarly Adv
- Rectilinearly Adv
- Rectorially Adv
- Recurrently Adv
- Recursively Adv
- Red-handed Adj Adv
- Reddish Adj Adv
- Reddishly Adv
- Redly Adv
- Redolently Adv
- Redoubtably Adv
- Reducibly Adv
- Redundantly Adv
- Reduplicatively Adv
- Referentially Adv
- Refinedly Adv
- Reflectingly Adv
- Reflectively Adv
- Reflexively Adv
- Reflexly Adv
- Reflexologically Adv
- Reform-mindedly Adv
- Reformatively Adv
- Reformistically Adv
- Refractorily Adv
- Refreshingly Adv
- Refulgently Adv
- Refutably Adv
- Regally Adv
- Regardfully Adv
- Regardless Adv
- Regardlessly Adv
- Regerminatively Adv
- Regimentally Adv
- Regionally Adv
- Regressively Adv
- Regretably Adv
- Regretfully Adv
- Regrettably Adv
- Regular Adj Noun Adv
- Regularly Adv
- Regulatively Adv
- Regulatorily Adv
- Rejoicingly Adv
- Relatively Adv
- Relativistically Adv