modified
oblique, inclined, sloping, awry, crooked, thrawn, sinuous, twisted, askew, transverse, diagonal, curved, loxic, bent, crinkled, serrated, falcated, furcal, furcated, jagged, straggling, meandering, devious, erratic, rambling, oscillating, fluctuating, waggling, undulatory, vibratory, indirect, spiral, tortuous; see also angular 1, irregular 4.
Antonyms straight*, parallel, undeviating.