How many letters does the top answer for “of uncertain outcome; especially fraught with risk” have?

The most common answer is chanceful (9 letters).

Crossword clue: of uncertain outcome; especially fraught with risk

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

chanceful 9 letters wn-def

of uncertain outcome; especially fraught with risk

dicey 5 letters wn-def

of uncertain outcome; especially fraught with risk