Synonyms of sphinxlike

2 Syllables

secret, deadpan, mystic

3 Syllables

mystifying, arcane, mysterial, difficult, mysterious, ambiguous

4 Syllables

unknowable, enigmatic, inscrutable, alchemistic, poker-faced, cabalistic, unreadable

5 Syllables

unaccountable, unfathomable, astrological, inexplicable, unexplainable, impenetrable, enigmatical

6 Syllables

unintelligible, undiscoverable, incomprehensible