Adjective - causes a fuss, inflammatory, likely to get people riled up 

(挑衅)

Prudent

Adjective - careful; wise

(谨慎)

Querulous

Adjective - irritable, prone to argument 

(易怒)

Rancorous

Adjective - hateful; unpleasant

(怀恶意的) 

Reclusive

Adjective - withdrawn

(隐遁)

Reconciliation

Noun - coming back together after an argument

(和解)

Renovation

Noun - being redone

(改造)

Restrained

Adjective - controlled; not free

(约束)

Reverence

Noun - deep respect

(尊敬)

Sagacity

Noun - wisdom

(卓识)

Scrutinize

Verb - to look at carefully

(审议)

Spontaneous

Adjective - being impulsive; acting without thinking

(自发)

Spurious

Adjective - false/ untrue

(伪)

Submissive

Adjective - mild/ meek

(服从的)

Substantiate

Verb - to confirm/ prove

(证实)