mind boggler

Perplexing puzzle indeed

A mind boggler is something that overwhelms comprehension or strains credulity—a fact, puzzle, or situation so strange or complex that the mind struggles to process it: The scale of the universe is a real mind boggler.

The term emphasizes astonishment rather than mere difficulty.

puzzle

riddle

Puzzling question to solve

cipher · maze · labyrinth · rebus · whodunit · escape room · tangram · sudoku · crossword · jigsaw

complexity

intricate

Elaborately detailed, many parts

nuanced · tangled · thorny · perplexing · abstract · esoteric · obscure · dense · sophisticated · challenging

fascination

mesmerizing

Completely capturing one's attention

engrossing · thought-provoking · provocative · stimulating · compelling · arresting · bewitching · enthralling · gripping · absorbing

entertainment

trivia

Unimportant miscellaneous facts

logic puzzle · word puzzle · escape room · mystery game · strategy game · charades · scrabble · lateral thinking · parlor game

Opposites
cognitive difficulty

mind bogglerno-brainer

Self-evident decision

cinch · piece of cake · child's play · slam dunk · cakewalk

remarkableness

mind bogglermundanity

Everyday, unremarkable quality

banality · commonplace · nothing special · yawner · ho-hum

Family

mind, minds, minded, minding, mindful, mindless, mindfully, mindfulness, mindlessly

Familiarity
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Used worldwide · Timeless · Abstract · Everyday, not technical · Rated G