subtler
adjective
Definitions
Hard to grasp; not obvious or easily understood; barely noticeable.
Example: The difference is subtle, but you can hear it if you listen carefully.
Antonyms:simple(of a thing) Cleverly contrived.
(of a person or animal) Cunning, skillful.
Synonyms:craftycunningskillfulInsidious.
Synonyms:deceptivemalicious