1. unconventional
2. bohemian, go-as-you-please, irregular, maverick, unorthodox, original, unconventional
3. alternative, bizarre, eccentric, freakish, freaky, flaky, off-the-wall, outlandish, outre, devil-may-care, raffish, rakish, far-out, kinky, offbeat, quirky, way-out, spaced-out, spacy, spacey, improper
3. unlawful, irregular