restrained (adj.)

• aesthetic
• aloof
• artistic
• aseptic
• backward
• barred
• bashful
• besieged
• blank
• blockaded
• bound
• bridled
• chaste
• chilly
• choice
• classic
• clear
• cloistered
• cold
• confined
• constrained
• controlled
• cool
• cramped
• curbed
• detached
• direct
• discreet
• distant
• easy
• elegant
• enclosed
• excellent
• expressionless
• fenced
• finished
• forbidding
• frigid
• frosty
• frugal
• graceful
• gracile
• guarded
• hedged
• hushed
• icy
• impassive
• impersonal
• imprisoned
• inaccessible
• inhibited
• introverted
• jailed
• limited
• limpid
• lucid
• measured
• moderate
• modest
• natural
• neat
• noncommittal
• offish
• pellucid
• pent-up
• perspicuous
• plain
• pleasing
• polished
• pure
• quarantined
• quelled
• quiet
• reasonable
• refined
• remote
• removed
• repressed
• reserved
• retarded
• reticent
• retiring
• round
• shrinking
• shut-in
• simple
• sober
• softened
• sparing
• stable
• standoffish
• stinting
• straightforward
• subdued
• suppressed
• tasteful
• tasty
• temperate
• tempered
• terse
• trim
• unaffected
• unapproachable
• uncongenial
• undemonstrative
• understated
• unexpansive
• unobtrusive
• well-chosen
• withdrawn