Answer: heedless

AnswerCrossword Clue
HEEDLESS

Inattentive

HEEDLESS

Not a bit concerned

HEEDLESS

Not a bit cautious

HEEDLESS
Without consideration
HEEDLESS
Unmindful
HEEDLESSInattentive.
HEEDLESSUnmindful.
HEEDLESSIndifferent.
HEEDLESSUnobservant.
HEEDLESSRash
HEEDLESS"How many mischiefs should ensue his ... haste": Spenser
HEEDLESSIncautious
HEEDLESSFoolhardy
HEEDLESSWithout care