Synonyms of rascally

1 Syllable

sly, bad, rude, ill, arch

2 Syllables

miscreant, sinful, harmful, evil, knavish, roguish, tricky, ribald, nocuous, impish, puckish, teasing, vexing, vicious, elfin, playful, foxy, naughtiest, wayward, risky, rascal, pixieish, naughtier, artful, naughty, dickens, hurtful

3 Syllables

pernicious, hazardous, injurious, sportive, mischievous, malicious, damaging, irksome, spiteful, insidious, dangerous, scoundrelly, vexatious, precarious, perilous, malignant

4 Syllables

frolicsome, ill-behaved, detrimental, bothersome, deleterious, misbehaving, troublesome, mythomaniac, destructive

5 Syllables

exasperating