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

The most common answer is reasonableness (14 letters).

Crossword clue: another word for tenableness

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

reasonableness 14 letters gen-syn

the quality of being plausible or acceptable to a reasonable person

tenability 10 letters gen-syn

the quality of being plausible or acceptable to a reasonable person

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