Synonyms of erratic

1 Syllable

wrong, strayer, weird, yoyo, quaint, stray, queer, rum

2 Syllables

wacky, spacey, quainter, spottier, kooky, queerer, amok, oddball, queerest, zigzag, tippier, strange, tippy, moody, iffy, errant, giddy, devious, quaintest, spacy, dicey, rummy, wiggly, crazier, dubious, chancier, snaking, pimply, fluctuant, craziest, wronging, rumer, wronger, fluffed, wrongest, odder, wayward, crazy, rambling, unmeant, fitful, dicier, aimless, oddest, moodier, wackiest, flaky, patchier, patchy, chancy, freakish, ditzy, casual, rummier, kookier, wackier, strangest, yo-yo, roving, spotty, lamster, shifting, zillion

3 Syllables

mercurial, tottery, tottering, indirect, haphazard, meandering, abnormal, haywire, unusual, hysteric, bizarre, inconstant, unguided, capricious, neurotic, outlandish, eccentric, unpunctual, peculiar, vagarious, unstable, errable, longwinded, fantastic, nomadic, unscrewed, whimsical, spasmodic, aberrant, splenetic, sidelong, variable, judgmental, unsteady, changeful, quicksilver, unsafe, mutable, hare-brained, changeable, unfixed, uncertain

4 Syllables

directionless, unreliable, desultory, fugitive, obsessive, harum-scarum, unnatural, volatile, fanatical, irregular, misfigured, humorsome, unintended, nonuniform, discursive, undesigned, uncountable, arbitrary, undirected, digressory, anomalous, bubbleheaded, planetary, inconsistent

5 Syllables

unreasonable, unpredictable, temperamental, psychoneurotic, idiosyncratic, incomputable, unreckonable, unintentional, undependable, incalculable

6 Syllables

circumlocutory, counterintuitive