fácildíficil
Fácildíficil is a neologism used in linguistic, cognitive science, and education discourse to describe situations, statements, or objects that embody a paradox of ease and difficulty. The term denotes a contrast between superficial simplicity and underlying complexity, or between the ease of recognizing a concept and the effort required to apply it.
Etymology: The word fácildíficil blends fácil and difícil, the Spanish or Portuguese words for easy and difficult,
Usage: It appears in analyses of instructions, puzzles, and interface design to highlight misalignment between labeling
Examples: A puzzle is presented as a quick win; however solving it requires recognizing a non-obvious rule
See also: paradox of easy and hard, cognitive bias, task design, linguistic portmanteau.