Thesaurus

Synonyms for Knotty include:

afoul, akimbo, ambitious, analyzable, anfractuous, aquiline, arduous, askew, awkward, awry, baffling, bending, bent, Byzantine, catchy, challenging, cockeyed, coiled, colonial, complex, complicated, composite, compound, contorted, convoluted, crooked, daedal, decomposable, deflective, delicate, demanding, difficult, distorted, effortful, embarrassing, enmeshed, entangled, foul, fouled, fractious, geniculate, gnarled, gnarly, Gordian, hard, hard-fought, herculean, hooked, indirect, interlacing, interlinking, interlocking, intermeshed, intertwined, interwoven, intricate, involved, knobbed, knotted, knotty, labyrinthian, labyrinthine, lopsided, malposed, matted, mazy, multifactorial, multiplex, nasty, problematic, problematical, reflexed, refractive, rocky, rootbound, rough, rugged, serious, skew-whiff, snarled, snarly, squiggly, sticky, tall, tangled, thickening, thorny, thrown, thrown and twisted, ticklish, tight, tortuous, touchy, tough, tricky, troublesome, trying, twisted, twisting, twisty, unenviable, vexed, voluminous, warped, windblown, winding, wonky, writhed, writhen, wry, zigzag

knotty is a ADJ.