WordNet (r) 3.0 (2006):

a la mode
    adv 1: with ice cream on top or on the side; "we served the
           apple pie a la mode"
    adj 1: in the current fashion or style [syn: latest, a la
           mode(p), in style(p), in vogue(p), modish]

Moby Thesaurus II by Grady Ward, 1.0:

39 Moby Thesaurus words for "a la mode":
   advanced, avant-garde, chic, contemporary, dashing, exclusive,
   far out, fashionable, fashionably, forward-looking, in,
   in the mode, mod, modern, modernistic, modernized, modish,
   modishly, newfashioned, now, present-day, present-time,
   progressive, soigne, soignee, streamlined, stylish, stylishly,
   tony, trendy, twentieth-century, ultra-ultra, ultramodern,
   up-to-date, up-to-datish, up-to-the-minute, vogue, voguish,
   way out