The Collaborative International Dictionary of English v.0.48:

Resourceful \Re*source"ful\ (-f?l), a.
   Full of resources.
   [1913 Webster]

WordNet (r) 3.0 (2006):

resourceful
    adj 1: having inner resources; adroit or imaginative; "someone
           who is resourceful is capable of dealing with difficult
           situations"; "an able and resourceful politician"; "the
           most resourceful cook in town"

Moby Thesaurus II by Grady Ward, 1.0:

106 Moby Thesaurus words for "resourceful":
   Daedalian, Machiavellian, Machiavellic, acute, adaptable, adept,
   adjustable, adroit, all-around, ambidextrous, amphibious, apt,
   arch, artful, artistic, astute, authoritative, bravura, brilliant,
   cagey, canny, clean, clever, coordinated, crack, crackerjack,
   crafty, creative, cunning, cute, daedal, deceitful, deep,
   deep-laid, deft, designing, dexterous, dextrous, diplomatic,
   excellent, expert, fancy, feline, flexible, foxy,
   generally capable, good, goodish, graceful, guileful, handy,
   imaginative, ingenious, insidious, inventive, knowing, magisterial,
   many-sided, masterful, masterly, neat, no mean, pawky, politic,
   professional, proficient, quick, quite some, ready, scheming,
   serpentine, sharp, shifty, shrewd, skillful, slick, slippery, sly,
   smart, smooth, snaky, sneaky, some, sophistical, statesmanlike,
   stealthy, strategic, stylish, subtile, subtle, supple, tactful,
   tactical, the compleat, the complete, trickish, tricksy, tricky,
   two-handed, versatile, virtuoso, vulpine, wary, well-done, wily,
   workmanlike