twenty-first century

contemporary current modernized present-day state-of-the-art stylish

avant-garde concomitant latest novel now present recent today

coincident concurrent contempo cutting edge fresh futuristic last word late latter-day leading-edge modernistic modish neoteric new-fashioned newfangled prevailing prevalent up-to-the-minute with it

old old-fashioned past

ancient antiquated obsolete outdated passé

futuristic state-of-the-art

advanced ahead of its time avant-garde contemporary current cutting-edge fresh latest leading-edge modernistic modish new new-fashioned nontraditional now present-day revolutionary stylish today up-to-the-minute