UNORTHODOX
ADJECTIVES
1970 — OFF THE WALL unusual; unorthodox → US students’ sl. (Bk.)
1970 — SPROUTSY unconventional, unorthodox in habits and opinions → US sl.
1970 — WHACKED OUT US students’ sl. – unorthodox; inclined toward foolish acts → US students’ sl. (Bk.)
1996 — OUT-OF-THE-BOX unorthodox, creative, original → colloq.
NOUNS – PERSON
1841 — PAGAN a person of unorthodox, uncultivated, or backward beliefs, tastes, etc.
1970 — SPOOK a peculiar or unorthodox person; an oddball → US students’ sl. (Bk.)
VERBS
1971 — THINK OUTSIDE THE BOX to think in an unorthodox manner colloq.
Lexicophilia 