- Regrettably Adv
- Regular Adj Noun Adv
- Regularly Adv
- Regulatively Adv
- Rejoicingly Adv
- Relatively Adv
- Relativistically Adv
- Relentingly Adv
- Relentlessly Adv
- Relevantly Adv
- Reliably Adv
- Reliantly Adv
- Religiously Adv
- Reluctantly Adv
- Remarkably Adv
- Remedially Adv
- Reminiscently Adv
- Remissly Adv
- Remittently Adv
- Remonstrantly Adv
- Remonstratingly Adv
- Remorsefully Adv
- Remorselessly Adv
- Remotely Adv
- Remuneratively Adv
- Repeatedly Adv
- Repellently Adv
- Repentantly Adv
- Repetitiously Adv
- Repetitively Adv
- Reportedly Adv
- Reportingly Adv
- Reposefully Adv
- Reprehensibly Adv
- Representationally Adv
- Representatively Adv
- Repressively Adv
- Reproachfully Adv
- Reproachingly Adv
- Reproductively Adv
- Reprovingly Adv
- Repugnantly Adv
- Repulsively Adv
- Reputably Adv
- Reputedly Adv
- Requisitely Adv
- Resentfully Adv
- Reservedly Adv
- Residentially Adv
- Residually Adv
- Resignedly Adv
- Resiliently Adv
- Resistantly Adv
- Resistibly Adv
- Resistively Adv
- Resolutely Adv
- Resolvedly Adv
- Resonantly Adv
- Resoundingly Adv
- Resourcefully Adv