reprimand.noun
a severe or formal rebuke
reprimand, reprimanded, reprimanding, reprimands.transitive verbs
to reprove severely, especially in a formal or official way; admonish

rail, railed, railing, rails.intransitive verbs
to complain violently; to express objections or criticisms in bitter, harsh, or abusive language; to hurt another's fame
railer.noun

rampant.adjective
flourishing; widespread; spreading unchecked (the weeds are rampant in his yard) 

reprove, reproved, reproving, reproves.transitive verbs
to speak to in disapproval; rebuke; admonish; to express disapproval of; rebuke censure; to find fault with
reprovable.adjective
reprovingly.adverb
deserving reproof; blameworthy
reprover.noun

reproof
a reproving; a reproval; rebuking; censuring

reticence.noun
restrained or reserved in stylel; reluctant; unwilling; inclined to keep one's thoughts, feelings, and personal affairs to oneself 
reticently.adverb
being reticent 
reticent.adjective
reserved; taciturn

retribution.noun
deserved punishment for evil done; pay back
retributive, retributory.adjectives

revile.verb
inflected form(s).reviled, reviling
transitive verb senses.to subject to verbal abuse; vituperate
intransitive verb senses.to use abusive language; rail
synonym.scold
revilement, reviler.nouns

rude, ruder, rudest.adjectives
lacking refinement, culture or elegance; unmannerly; discourteous; a deliberate lack of respect for others; feelings and connotes insolence and impudence; impolite 
rudeness.noun
rudely.adverb

relegate, relegated, relegating.transitive verbs
to consign to an inferior position; to refer, commit or hand over for decision or action; to exile or banish
relegation.noun
synonym.commit

retort, retorted, retorting, retorts.verbs
transitive verb senses or use.to reply, especially to answer; to return in kind; answer; to present a counterargument to
intransitive verb senses or use.to make a reply; to present a counterargument; to return like for like; retaliate
retort.noun
reply; the act or an instance of retorting
retorter.noun

radical.adjective
an atom or a group of atoms with at least one unpaired electron; symbol R (see free radical); rising from or going to a root or source; basic (a radical flaw in a plan; chose the radical solution of starting all over again); departing markedly from the usual or customary; extreme (radical opinions on education); favoring or effecting fundamental or revolutionary changes in current practices, conditions, or institutions (radical political views)

radically.adverb
from the very origin or foundation; basically; completely (as, radically mistaken)

readily.adverb
in a prompt, timely manner; promptly; easily; in a cooperative manner; willingly; in a manner indicating or connoting ease; without hesitation or difficulty; quickly

reason.noun
the basis or motive for an action, a decision, or a conviction; because; why; a declaration made to explain or justify an action, a decision, or a conviction (inquired about her reason for leaving); an underlying fact or cause that provides logical sense for a premise or an occurrence.(there is reason to believe that he is not responsible); the capacity for logical, rational and analytic thought; intelligence; good judgment; sound sense; a normal mental state; sanity (he has lost his reason)
reason, reasoned, reasoning, reasons.intransitive verbs
to use the faculty of reason; think logically; to talk or argue logically and persuasively
transitive verb use.to determine or conclude by logical thinking (reasoned out a solution to the problem); to persuade or dissuade.(someone) with reasons
reasoner.noun
by reason of.idiom
because of
in reason.idiom
with good sense or justification; reasonably
within reason.idiom
within the bounds of good sense or practicality
with reason.idiom
with good cause; justifiably
reasoning.noun
the drawing of inferences from known or assumed facts; thinking coherently and logically

reasonable.adjective
capable of reasoning; rational.(a reasonable person); soundthinking.(a reasonable solution to the problem); being within the bounds of commonsense.(arrive home at a reasonable hour so you can get enough sleep); not excessive or extreme; fair (reasonable prices)
reasonability.or.reasonableness.noun
reasonably.adverb

resemble, resembled, resembling, resembles.transitive verbs
to be like or similar to in appearance or nature; to exhibit similarity or likeness to
resembler.noun

revert, reverted, reverting, reverts.intransitive verbs
to return to a former condition, practice, subject, or belief; return
reverter.noun
revertible, revertive.adjectives

resident.adjective
dwelling in a particular place; residing
resident.noun
a physician serving a period of residency; one who resides in a particular place permanently or for an extended period

resurgence.noun
a rising again; resurging
resurgent.adjective
rising or tending to rise again
resurge.intransitive verb
to rise again; revive; be resurrected

rife.adjective
frequently or commonly occurring; widespread; prevalent; abundant; plentiful; replete

rigor.noun
strictness or severity, as in temperament, action, or judgment; a  harsh or trying circumstance; hardship; difficulty

rigorous.adjective
rigidly precise; thoroughly accurate or exact
synonym.strict
rigorous.adjective
characterized by or acting with rigor.(a rigorous program to restore physical fitness; full of rigors; harsh.(a rigorous climate); rigidly.accurate; precise; burdensome
rigorously.adverb
rigorousness.noun

rut.noun
the periodic sexual excitement of male deer, camels, sheep, goats, etc., corresponding to estrus in the female

repeal, repealed, repealing, repeals.transitive verbs
to revoke or rescind, especially by an official or formal act
repeal.noun
the act or process of repealing
repealable.adjective
repealer.noun

republic.noun.('we the public'; 're public'.–.things to do with the public)
a political order in which the supreme power lies in a body of citizens who place into positions of responsibility, individuals duly elected by them; a nation that has such a political order such as the United States

retain, retained, retaining, retains.transitive verbs
to maintain possession of; keep; to keep or hold in a particular place, condition, or position; to keep in mind; remember; to hire (an attorney, for example) by the payment of a fee; to keep in one's service or pay
retainability, retainment.nouns
retainable.adjective

retentive.adjective
having the quality, power, or capacity of retaining; having the ability or capacity to retain knowledge or information with ease (a retentive memory)
retentively.adverb
retentiveness.noun