How many letters does the top answer for “not lasting. sir w. raleigh.” have?

The most common answer is dureless (8 letters).

Crossword clue: not lasting. sir w. raleigh.

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

dureless 8 letters web-def

Not lasting. [Obs.] Sir W. Raleigh.

a negotiator. sir w. raleigh. 50% similar → negotiant

an alligator. sir w. raleigh. 50% similar → lagarto

opinionated. sir w. raleigh. 50% similar → opiniaster, opiniatre