How many letters does the top answer for “lacking the requisite qualities or resources to meet a task” have?

The most common answer is inadequate (10 letters).

Crossword clue: lacking the requisite qualities or resources to meet a task

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

inadequate 10 letters wn-def

lacking the requisite qualities or resources to meet a task

unequal 7 letters wn-def

lacking the requisite qualities or resources to meet a task