|Difficult to describe.|
A haunting elusive odor.
|Difficult to detect or grasp by the mind or analyze.|
His whole attitude had undergone a subtle change.
A subtle difference.
That elusive thing the soul.
|سمجھ سے بالاتر|
|Making great mental demands; hard to comprehend or solve or believe.|
A baffling problem.
I faced the knotty problem of what to have for breakfast.
A problematic situation at home.