If a monster attack with dex bonus does it count as a finesse?

@JeremyECrawford If a monster uses an attack that uses dexterity bonuses, does it count as a finesse weapon?

— Henry Helwig (@lordfireguy) August 22, 2015

A weapon doesn't have the finesse property unless its description says so. Using Dex. doesn't mean finesse. https://t.co/fd1axhcXoc

— Jeremy Crawford (@JeremyECrawford) August 24, 2015