priciest

adj

1. (form-of, superlative)superlative form of pricey: most pricey

   “The San Juan market is Mexico City's most famous deli of exotic meats, where an adventurous shopper can hunt down hard-to-find critters […]. But the priciest items in the market aren't the armadillo steaks or even the bluefin tuna. That would be the frozen chicatanas – giant winged ants – at around $500 a kilo.”