Synonyms for Trickiness:

n.

dishonesty, chicanery, trickery, sneakiness, underhandedness, shadiness, indirection, craft, honest. cunning (noun)
guile, ingenuity, mastery, art, skill, snakiness, slickness, cunning, subtlety, deviousness, wariness, slipperiness, smoothness, sly.
difficulty (noun)
difficulty, onerousness, tightness, formidability, adversity, stressfulness, wearying, toughness, complexity, oppressiveness, cantankerousness, severity, hardness, strenuousness, contrariness, wearisomeness, fussiness, harshness, ticklishness, ordeal, cumbersomeness, complication, knottiness, arduousness, roughness.
dishonesty (noun)
indirection, wiliness, deviousness.
indirection (noun)
deviousness, rascality, chicanery, cunning, trickery, wiliness, shadiness, shiftiness, slyness, craft, craftiness, underhandedness, dishonesty, guile, sneakiness.
intuition (noun)
insight, foresight, intuition, instinct.
trickiness (noun)
shiftiness, slipperiness, rascality.
wit (noun)
facility, wit, humor, slyness, Subtleness, urbanity, finesse, foxiness, sophistry, brilliance, comedy, wiliness, Canniness, craftiness, scurrility, adroitness, ingeniousness, inventiveness, cleverness, sharpness, artfulness, drollness, Cunningness, quickness, scintillation, astuteness, deftness, shrewdness, resourcefulness, intellect, irony.

Other synonyms:

shadiness, underhandedness, indirection. chicanery, sneakiness. trickery. craft. deceit
dishonesty.
Other relevant words:
dishonesty, shadiness, indirection, craft, underhandedness, shiftiness, rascality, chicanery, sneakiness, trickery.