What are the best answers for “the favorable quality of strongly indicating a successful result”?

auspiciousness, propitiousness.

How many letters does the top answer for “the favorable quality of strongly indicating a successful result” have?

The most common answer is auspiciousness (14 letters).

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

auspiciousness 14 letters wn-def

the favorable quality of strongly indicating a successful result

propitiousness 14 letters wn-def

the favorable quality of strongly indicating a successful result