How many letters does the top answer for “a foolish or thoughtless young person, esp. a slothful or slovenly woman. burns.” have?

The most common answer is taupie (6 letters).

Crossword clue: a foolish or thoughtless young person, esp. a slothful or slovenly woman. burns.

2 answers found in Letterora's clue database (Wikidata facts, Open Trivia DB, WordNet and Webster definitions — all licensed sources).

taupie 6 letters web-def

A foolish or thoughtless young person, esp. a slothful or slovenly woman. [Scot.] Burns.

tawpie 6 letters web-def

A foolish or thoughtless young person, esp. a slothful or slovenly woman. [Scot.] Burns.