far out (?.)
- Bohemian
- a la mode
- advanced
- at the height
- at the limit
- avant-garde
- beat
- breakaway
- contemporary
- extreme
- fashionable
- forward-looking
- free and easy
- fringy
- furthest
- greatest
- heretical
- heterodox
- hippie
- in
- informal
- kinky
- maverick
- mod
- modern
- modernistic
- modernized
- modish
- most
- newfashioned
- not cricket
- not done
- not kosher
- now
- offbeat
- original
- present-day
- present-time
- progressive
- radical
- streamlined
- too much
- twentieth-century
- ultra
- ultra-ultra
- ultramodern
- unconventional
- unfashionable
- unorthodox
- up-to-date
- up-to-datish
- up-to-the-minute
- utmost
- uttermost
- way out