knotty (adj.)making great mental demands; hard to comprehend or solve or believe;
I faced the knotty problem of what to have for breakfast
knotty (adj.)used of old persons or old trees; covered with knobs or knots;
knotty (adj.)highly complex or intricate and occasionally devious; "Oh, what a tangled web we weave"- Sir Walter Scott;
knotty (adj.)tangled in knots or snarls;
Synonyms: snarled / snarly
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