I-adjective (keiyoushi)

suspicious; dubious; questionable; dodgy; shady; fishy

doubtful; unsure; uncertain; unlikely; implausible

untrustworthy; unreliable; clumsy; awkward; shaky; poor

strange; weird; eerie; spooky; uncanny

ominous (e.g. weather); threatening; dangerous (e.g. financial situation); uncertain

suspicious (of a potential amorous relation)

mysterious; bewitching; alluring; enticing; enchanting

also 妖しいsee 妖しいsee あやしい