Synonyms of unfastidious

2 Syllables
messiest, rumpled, messier, slipshod, muddled, sloppy, unkempt, grimy, messy, grubby, blowzy, slapdash, blotchy, mussier, raunchy, chaotic, messer, unneat, mussy
3 Syllables
untidy, confused, littered, careless, slovenly
4 Syllables
disordered, disheveled, unorderly
5 Syllables
disorganized