Synonyms of unconventional

Adjective

1. unconventional (vs. conventional), bohemian, go-as-you-please, irregular, maverick, unorthodox, original

usage: not conforming to accepted rules or standards; "her unconventional dress and hair style"

2. unconventional (vs. conventional) (vs. conventional), alternative, bizarre, eccentric, freakish, freaky, flaky, flakey, gonzo, off-the-wall, outlandish, outre, devil-may-care, raffish, rakish, far-out, kinky, offbeat, quirky, way-out, funky, spaced-out, spacy, spacey

usage: not conventional or conformist; "unconventional life styles"

3. improper, unconventional, unlawful, irregular (vs. regular)

usage: not conforming to legality, moral law, or social convention; "an unconventional marriage"; "improper banking practices"

Definition and meaning of unconventional (Dictionary)