Spendthrift, profligate.
Wild or uncontrolled.
Sketchy and flowing rather than geometric and precise.
Aimless
Lenient, permissive.
With open hand (as opposed to a fist).
Characterized by broad sweeping movements.
Involving wrist action.
Casual; undisciplined or haphazard.
With a poor grip.
Improvident, profligate, or wasteful.
Extravagant or lavish.
Someone who spends money improvidently or wastefully.
Anything that distributes its attributes profusely, without restraint.