How many letters does the top answer for “lost temporarily; as especially put in an unaccustomed or forgotten place” have?

The most common answer is mislaid (7 letters).

Crossword clue: lost temporarily; as especially put in an unaccustomed or forgotten place

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

mislaid 7 letters wn-def

lost temporarily; as especially put in an unaccustomed or forgotten place

misplaced 9 letters wn-def

lost temporarily; as especially put in an unaccustomed or forgotten place