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

The most common answer is baffling (8 letters).

Crossword clue: another word for problematic

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

baffling 8 letters gen-syn

making great mental demands; hard to comprehend or solve or believe

problematical 13 letters gen-syn

making great mental demands; hard to comprehend or solve or believe

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