careless:
attentive,
mindful,
concerned,
painstaking,
accurate,
prudent,
ready.
defenseless:
powerful,
strong.
exposed:
protected,
shielded,
sheltered,
guarded,
safe.
incautious:
discreet.
insecure:
secure,
sound.
rash:
planned.
unguarded:
cautious,
careful,
thoughtful.
unwary:
wary,
Heeding.
noun:
tight-lipped,
considerate,
armored,
shielded,
tactful,
forethoughtful,
civil,
sheltered,
circuitous,
shrewd,
attentive,
reticent,
politic,
equivocal,
evasive,
invincible,
reserved,
uncommunicative,
diplomatic,
dissembling,
resistant,
foresighted,
courteous,
unbeatable,
alert,
ambiguous,
heedful,
fortified,
taciturn,
quiet,
provident,
armed,
omnipotent,
scheming,
gingerly,
observant,
unconquerable,
inhibited,
chary,
circumspect,
close-mouthed,
unassailable,
laconic,
impregnable,
thoughtful,
polite,
restrained,
strong,
protected,
defensible,
immune,
vigilant,
calculating,
watchful,
invulnerable,
covered,
impenetrable.