puzzling (adj.)
- able
- abstruse
- ambiguous
- baffling
- beguiling
- confounding
- confusing
- contradictory
- cryptic
- disconcerting
- dismaying
- disturbing
- embarrassing
- enigmatic
- enigmatical
- exceptional
- extraordinary
- fabulous
- fantastic
- fascinating
- incalculable
- incognizable
- incomprehensible
- inconceivable
- incredible
- intricate
- marvelous
- miraculous
- mysterious
- mystifying
- outlandish
- perplexing
- perturbing
- phenomenal
- problematic
- prodigious
- rare
- remarkable
- sealed
- sensational
- strange
- striking
- stupendous
- unapparent
- unbeknown
- uncharted
- unclassified
- undisclosed
- undiscoverable
- undiscovered
- unexplained
- unexplored
- unfamiliar
- unfathomed
- unheard
- unheard-of
- unidentified
- unimaginable
- unique
- unknowable
- unknown
- unperceived
- unplumbed
- unprecedented
- unrevealed
- unsuspected
- untouched
- upsetting
- virgin
- wonderful
- wondrous
