subtle (adj)

The handsome man has a subtle smile.
The artist used subtle shades of blue and gray to create a calming and understated atmosphere in the painting.
Her subtle hint went unnoticed by most, but a keen observer picked up on the hidden message.
The subtle fragrance of lavender in the air added a touch of elegance to the room.
The comedian's humor was clever and subtle, appealing to those who appreciated wit over obvious punchlines.