How many letters does the top answer for “incapable of being overcome or subdued” have?

The most common answer is invincible (10 letters).

Crossword clue: incapable of being overcome or subdued

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

invincible 10 letters wn-def

incapable of being overcome or subdued

unbeatable 10 letters wn-def

incapable of being overcome or subdued

incapable of being overcome, challenged or refuted 50% similar → impregnable, inexpugnable