How many letters does the top answer for “to an extraordinary extent or degree” have?

The most common answer is greatly (7 letters).

Crossword clue: to an extraordinary extent or degree

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

greatly 7 letters wn-def

to an extraordinary extent or degree

to an extraordinary degree 67% similar → passing, surpassingly

to the degree or extent that 67% similar → insofar

in an extraordinary manner or degree. 50% similar → extraordinarily

to a great degree or extent 50% similar → much

to a great extent or degree 50% similar → considerably, substantially

to a remarkable degree or extent 50% similar → remarkably, unco, unusually

to a small degree or extent 50% similar → slightly, somewhat

to certain extent or degree 50% similar → fairly, middling, moderately