reckless (adj.)
- accident-prone
- adventuresome
- agile
- airy
- apathetic
- ataractic
- audacious
- blase
- brash
- breakneck
- carefree
- careless
- casual
- cursory
- dangerous
- daredevil
- daring
- dashing
- degage
- desperate
- devil-may-care
- disinterested
- dispassionate
- double-quick
- easygoing
- expeditious
- express
- fast
- feckless
- fleet
- flippant
- flying
- foolhardy
- foolish
- forgetful
- furious
- harum-scarum
- hasty
- headlong
- heedless
- hopeless
- hotheaded
- hurried
- ill-advised
- ill-considered
- ill-judged
- impatient
- impetuous
- impolitic
- imprudent
- impulsive
- inadvisable
- inattentive
- incautious
- inconsiderate
- incurious
- indifferent
- indiscreet
- inexpedient
- injudicious
- insensate
- insouciant
- irrational
- irresponsible
- lackadaisical
- lazy
- light-footed
- listless
- lively
- mad
- madcap
- mercurial
- mindless
- misguided
- myopic
- negligent
- nimble
- nonchalant
- oblivious
- offhand
- overeager
- overenthusiastic
- overhasty
- overzealous
- perfunctory
- precipitant
- precipitate
- precipitous
- prompt
- quick
- rapid
- rash
- reasonless
- regardless
- running
- senseless
- shortsighted
- slapdash
- snappy
- spanking
- speedy
- sudden
- swift
- tactless
- temerarious
- thoughtless
- unadvised
- unconcerned
- unconsidered
- undiplomatic
- undiscerning
- undiscriminating
- unheeding
- uninterested
- unmindful
- unprepared
- unready
- unreasonable
- unreflective
- unseeing
- unsound
- untactful
- unthinking
- unthoughtful
- unwise
- venturesome
- venturous
- wanton
- wild
- winged
- witless
Do not, as some ungracious pastors do,
Show me the steep and thorny way to heaven;
Whiles, like a puff'd and reckless libertine,
Himself the primrose path of dalliance treads,
And recks not his own rede.
I am one, my liege,
Whom the vile blows and buffets of the world
Have so incensed that I am reckless what
I do to spite the world.