How many letters does the top answer for “a situation in which no progress can be made or no advancement is possible” have?

The most common answer is deadlock (8 letters).

Crossword clue: a situation in which no progress can be made or no advancement is possible

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

deadlock 8 letters wn-def

a situation in which no progress can be made or no advancement is possible

impasse 7 letters wn-def

a situation in which no progress can be made or no advancement is possible

standstill 10 letters wn-def

a situation in which no progress can be made or no advancement is possible