How many letters does the top answer for “another word for forestalling” have?

The most common answer is obviation (9 letters).

Crossword clue: another word for forestalling

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

obviation 9 letters gen-syn

the act of preventing something by anticipating and disposing of it effectively

preclusion 10 letters gen-syn

the act of preventing something by anticipating and disposing of it effectively

another word for about 50% similar → approximately, roughly, some

another word for terms 50% similar → footing

another word for under 50% similar → nether

another word for word 50% similar → phrase