shiftless (adj.)

• aimless
• bone-lazy
• dilatory
• do-nothing
• easy
• faineant
• feckless
• good-for-nothing
• happy-go-lucky
• heedless
• idle
• improvident
• indolent
• ineffective
• irresponsible
• lackadaisical
• laggard
• lax
• lazy
• negligent
• nonaggressive
• otiose
• parasitic
• remiss
• slack
• slothful
• slow
• thoughtless
• thriftless
• unambitious
• uncaring
• uneconomical
• unenterprising
• uninspired
• unmotivated
• work-shy