fine line

noun

: a very small difference

There's a fine line between being helpful and being intrusive.

There's sometimes only a very fine line between genius and madness.

Examples of fine line in a Sentence

Recent Examples on the Web

As anyone who watches nineties-era romantic comedies knows, there’s a fine line between charming overtures and boneheaded actions that result in deep psychological wounds. —Frederick Dreier, Outside, 11 Feb. 2026

But without a finished 10th novel to work from (Gabaldon is currently in progress on her final Outlander volume, called A Blessing for a Warrior Going Out), Roberts and team had to toe a fine line between honoring the essence of the book series and forging their own path forward. —Amy Wilkinson, Entertainment Weekly, 10 Feb. 2026

And now Prince William is walking a fine line – with a controversial visit to Saudi Arabia and an audience with Crown Prince Mohammed bin Salman, the man said to have ordered the brutal murder of dissident journalist Jamal Khashoggi. —Harriet Marsden, TheWeek, 10 Feb. 2026

The almost imperceptible pigment is an immediate boost of pore- and fine line-blurring prowess. —Tamim Alnuweiri, InStyle, 8 Feb. 2026

Rhymes for fine line

• acridine
• alkaline
• andesine
• anodyne
• anticline
• arginine
• asinine
• atropine
• benzidine
• borderline
• byzantine
• calamine