knotted vs gnarled

knotted and gnarled both are adjectives.

Word	Noun	Adjective	Verb	Adverb
knotted	No	Yes	No	No
gnarled	No	Yes	No	No

As adjectives, knotted and gnarled are synonyms defined as:

knotted and gnarled: used of old persons or old trees; covered with knobs or knots

Other synonyms of knotted include gnarly, knobbed, knotty.

knotted (adjective)	gnarled (adjective)
used of old persons or old trees; covered with knobs or knots	used of old persons or old trees; covered with knobs or knots
tied with a knot