unbroken (adj.)

• accordant
• alike
• articulated
• automatic
• balanced
• bright
• ceaseless
• connected
• consistent
• consonant
• constant
• continual
• continued
• continuing
• continuous
• correspondent
• cyclical
• direct
• downy
• endless
• entire
• equable
• equal
• even
• featureless
• flat
• fresh
• glabrescent
• glabrous
• harmless
• homogeneous
• horizontal
• immediate
• immutable
• incessant
• intact
• interminable
• invariable
• inviolate
• irreversible
• joined
• level
• lineal
• linear
• linked
• measured
• mechanical
• mint
• monolithic
• monotonous
• never-ending
• nonstop
• one-way
• ordered
• orderly
• oscillating
• perennial
• perfect
• periodic
• perpetual
• persistent
• plane
• pristine
• rapid
• rectilineal
• rectilinear
• recurrent
• regular
• repeated
• repetitive
• right
• robotlike
• round-the-clock
• running
• seamless
• serried
• smooth
• smooth-shaven
• smooth-textured
• sound
• stable
• staccato
• steadfast
• steady
• straight
• straightaway
• straightforward
• streamlined
• suave
• sustained
• systematic
• true
• unbending
• unbent
• unbowed
• unceasing
• unchangeable
• unchanged
• unchanging
• unconquered
• uncurved
• undamaged
• undeviating
• undifferentiated
• undistorted
• undiversified
• unending
• ungoverned
• unharmed
• unhurt
• unidirectional
• uniform
• unimpaired
• uninjured
• uninterrupted
• unmarked
• unmarred
• unrelieved
• unremitting
• unruffled
• unscathed
• unspoiled
• unsubdued
• unswerving
• untamed
• untouched
• unturned
• unvanquished
• unvaried
• unvarying
• upright
• vertical
• virgin