bolsterer
One who reinforces
One who bolsters—supports, strengthens, or props up.
The word usually appears in contexts of encouragement or reinforcement: a bolsterer of confidence, a bolsterer of failing spirits.
Like many -er agent nouns, it's formed as needed rather than being a fixed term.
One who heartens others
- motivatorSomething prompting action
- cheerleaderTeam spirit performer
- inspirerOne who stirs others
- uplifterOne who encourages others
reassurer · comforter · confidante · morale-booster · heartener · supporter · backer · champion
Consequence increasing behavior
- braceDevice providing structural stability
- buttressArchitectural wall reinforcement
- strutProud, showy gait
- shoringTemporary structural support
stanchion · pillar · support · prop · underpinning · framework · girder · beam
Public cause supporter
- proponentOne who advocates something
- championTop competitor, or advocate
- defenderOne who guards another
- upholderOne who maintains something
endorser · patron · adherent · partisan · follower · sympathizer · votary · disciple
One who aids another
- allySupportive partner
- partnerOne who shares activity
- associateConnect mentally or socially
- collaboratorOne who works jointly
aide · assistant · accomplice · confederate · cohort · compatriot · sidekick · friend
encourager
One who heartens others
- motivatorSomething prompting action
- cheerleaderTeam spirit performer
- inspirerOne who stirs others
uplifter · reassurer · comforter · confidante · morale-booster · heartener · supporter · backer · champion · advocate
reinforcer
Consequence increasing behavior
- braceDevice providing structural stability
- buttressArchitectural wall reinforcement
- strutProud, showy gait
shoring · stanchion · pillar · support · prop · underpinning · framework · girder · beam · truss
advocate
Public cause supporter
- proponentOne who advocates something
- championTop competitor, or advocate
- defenderOne who guards another
upholder · endorser · patron · adherent · partisan · follower · sympathizer · votary · disciple · apostle
helper
One who aids another
collaborator · aide · assistant · accomplice · confederate · cohort · compatriot · sidekick · friend · comrade
bolstererunderminer
One who weakens covertly
opponent · detractor · saboteur · critic · antagonist
bolstererdiscourager
One who dampens motivation
demoralizer · deflater · dampener · disheartener · belittler
- bolster pillowElongated supportive bed pillow
- yoga bolsterSupportive pillow for poses