unguarded (adj.)

• arbitrary
• artless
• asleep
• bluff
• blunt
• broad
• brusque
• candid
• capricious
• careless
• childlike
• confiding
• defenseless
• derelict
• direct
• downright
• explicit
• exposed
• forthright
• frank
• free
• free-spoken
• genuine
• guileless
• hasty
• heart-to-heart
• heedless
• helpless
• imprudent
• inadvertent
• inattentive
• incautious
• inconsiderate
• indiscreet
• ingenuous
• innocent
• involuntary
• laissez-faire
• lax
• loose
• naive
• napping
• neglectful
• negligent
• nodding
• nonrestrictive
• off-guard
• open
• openhearted
• outspoken
• permissive
• plain
• reasonless
• relaxed
• remiss
• round
• simple
• sincere
• single-minded
• slack
• sleeping
• slighting
• straight
• straight-out
• straightforward
• thoughtless
• transparent
• trustful
• trusting
• unalert
• unarmed
• unarmored
• unattended
• unchecked
• unconscious
• unconstrained
• uncovered
• undefended
• undesigned
• unequivocal
• unguided
• unintended
• unintentional
• unplanned
• unpremeditated
• unprepared
• unprompted
• unprotected
• unready
• unreasoning
• unreserved
• unrestrained
• unshielded
• unsophisticated
• unsuspecting
• unsuspicious
• unthinking
• unthought-of
• unthoughtful
• unvigilant
• unwary
• unwatchful
• unwise
• unwitting
• vulnerable
• weaponless