How many letters does the top answer for “for a very short time” have?

The most common answer is transiently (11 letters).

Crossword clue: for a very short time

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

transiently 11 letters wn-def

for a very short time

lasting a very short time 75% similar → ephemeral, fugacious, passing

for a short time 67% similar → awhile, briefly, shortly

only a very short time before 60% similar → barely, hardly, scarce

the property of lasting for a very short time 60% similar → ephemerality, fleetingness

a very short skirt 50% similar → mini, miniskirt

for a very brief time 50% similar → transitorily

(of clothing) very short 50% similar → abbreviated