supersubtle (or obsolete supersubtile) /soo- or sū-pər-sutˈl/

1. Excessively subtle
2. Extremely subtle

• squinnying
• squint
• squinted
• squinter
• squinters
• squintest
• squint-eye
• squint-eyed
• squint-eyes
• squintier
• squintiest
• squinting
• squintingly
• squintings
• squints
• squinty
• squiny
• squinying
• squirage
• squirages
• squirality
• squiralty
• squirarch
• squirarchal
• squirarchical