undistorted (adj.)

• authentic
• candid
• direct
• even
• faithful
• flat
• genuine
• good
• honest
• horizontal
• just
• lawful
• legitimate
• level
• lifelike
• lineal
• linear
• literal
• natural
• naturalistic
• original
• pure
• real
• realistic
• rectilineal
• rectilinear
• right
• rightful
• simple
• sincere
• smooth
• sterling
• straight
• streamlined
• strict
• sure-enough
• true
• unadulterated
• unaffected
• unassuming
• unbending
• unbent
• unbowed
• unbroken
• uncolored
• uncurved
• undeviating
• undisguised
• unfeigned
• unflattering
• unimagined
• uninterrupted
• unpretending
• unqualified
• unromantic
• unswerving
• unturned
• unvarnished
• upright
• veracious
• verbal
• verbatim
• veridical
• verisimilar
• vertical