This list contains all the adverbs used in the English language that start with R. It includes negative and positive adverbs with R to describe a person.
| Rabidly | Racially | Racily |
| Radially | Radiantly | Radiately |
| Radically | Radioactively | Raffishly |
| Raggedly | Railingly | Rakishly |
| Rallentando | Ramblingly | Rampantly |
| Rancidly | Randomly | Rankly |
| Rantingly | Rapaciously | Rapid |
| Rapidly | Rapturously | Rarely |
| Rashly | Raspingly | Rather |
| Rationally | Rattling | Raucously |
| Ravenously | Raving | Ravingly |
| Ravishingly | Rawly | Readably |
| Readily | Real | Realistically |
| Realizingly | Really | Rearly |
| Rearward | Rearwards | Reasonably |
| Reassuringly | Rebelliously | Rebukingly |
| Recently | Receptively | Reciprocally |
| Recklessly | Reclusely | Recognizably |
| Rectlinearly | Recurrently | Redly |
| Reflectively | Reflexively | Reflexly |
| Refreshfully | Refreshingly | Regally |
| Regardless | Regimentally | Regionally |
| Regretfully | Regrettably | Regular |
| Regularly | Relatively | Relativistically |
| Relaxingly | Relentlessly | Relevantly |
| Reliably | Religiously | Reluctantly |
| Remarkably | Remedially | Reminiscently |
| Remissly | Remorsefully | Remorselessly |
| Remotely | Renewedly | Renownedly |
| Reparably | Repeatedly | Repellently |
| Repellingly | Repentantly | Repetitively |
| Repiningly | Reportedly | Reprehensibly |
| Reprehensively | Reproachfully | Reproducibly |
| Reprovingly | Repulsively | Reputably |
| Reputedly | Resentfully | Reservedly |
| Residentially | Resignedly | Resiliently |
| Resinously | Resolutely | Resolvedly |
| Resonantly | Resoundingly | Resourcefully |
| Respectably | Respectfully | Respectively |
| Resplendently | Responsibly | Responsively |
| Restfully | Restively | Restlessly |
| Restoratively | Restrictively | Retail |
| Retentively | Reticently | Retroactively |
| Retrospectively | Reunitedly | Revengefully |
| Reverendly | Reverentially | Reverently |
| Reversedly | Reversely | Reversibly |
| Revokingly | Revoltingly | Rewardingly |
| Rhapsodically | Richly | Ridgingly |
| Right | Righteously | Rightfully |
| Rightly | Rightward | Rigidly |
| Rigorously | Rimosely | Ringingly |
| Riotously | Ripely | Ripplingly |
| Risibly | Riskily | Ritually |
| Roaringly | Robustly | Roguishly |
| Rollickingly | Romantically | Romanticly |
| Romeward | Rompingly | Roomily |
| Ropily | Rosily | Rottenly |
| Rotundly | Rough | Roughly |
| Round | Roundly | Rousingly |
| Routinely | Routously | Rovingly |
| Rowdily | Royally | Ruddily |
| Rudely | Ruefully | Ruggedly |
| Ruinously | Rulingly | Rumblingly |
| Ruminantly | Runningly | Rurally |
| Rushingly | Rusticly | Rustily |
| Ruthlessly |
