Noun, Suru verb
cramp; sprain; crick; strain (muscle)
君が罰をうけるのは筋違いだと思った。We thought it was absurd that you got punished. Noun
unreasonableness; absurdity
Noun which may take the genitive case particle 'no', Na-adjective (keiyodoshi)
illogical; unreasonable
misdirected; misplaced; wrong (of estimate, guess)
Also written すじ違い【すじちがい】