Definition of "trickiness" [trick•i•ness]

• The quality of being tricky. (noun)

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• "Writing in the 1930s, Gallico claimed that basketball “appeals to the Hebrew with his Oriental background because the game places a premium on an alert, scheming mind and flashy trickiness, artful dodging and general smartalecness.”"
• ""There's some trickiness in how the substations work," he said."
• "Although the shifts here go up to 7%, much bigger than the 3% CDF quote, it is still a good illustration of the trickiness of systematic uncertainties."