unwary (adj.)

• artless
• asleep
• bluff
• blunt
• brash
• brazen
• candid
• careless
• childlike
• confiding
• derelict
• direct
• foolhardy
• frank
• guileless
• hasty
• heedless
• hotheaded
• ill-advised
• improvident
• imprudent
• impudent
• inadvertent
• inattentive
• incautious
• inconsiderate
• indiscreet
• ingenuous
• injudicious
• innocent
• insolent
• laissez-faire
• lax
• loose
• mindless
• naive
• napping
• neglectful
• negligent
• nodding
• nonrestrictive
• off-guard
• open
• openhearted
• outspoken
• overbold
• overconfident
• overweening
• permissive
• plain
• rash
• reckless
• relaxed
• remiss
• simple
• sincere
• single-minded
• slack
• sleeping
• slighting
• temerarious
• thoughtless
• trustful
• trusting
• unadvised
• unalert
• unguarded
• unprepared
• unready
• unreserved
• unsophisticated
• unthinking
• unvigilant
• unwatchful
• unwise