Comparative form of tricky: more tricky(adjective)
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Use "trickier" in a sentence
"A good example of title trickier (hell, even cover trickier) is"
"While Mr. Chávez is taking pains to present the nationalization as a legal purchase of a bank that was already for sale, Venezuela's history of banking crises will make buttressing confidence over the long term a trickier task."
"AP / Post, the report also suggested that states address the "trickier" issue of"