unaccountable
- adjective (adj)
Meaning: not explainable mysterious
Synonyms:
arcane
astonishing
baffling
extraordinary
impenetrable
incomprehensible
inexplicable
inscrutable
mystic
odd
peculiar
puzzling
strange
uncommon
unexplainable
unfathomable
unheard-of
unintelligible
unknowable
unusual
unwonted
Roget's 21st Century Thesaurus, Third Edition Copyright © 2013 by the Philip Lief Group.