icebergy

adjective3

1. •
   (informal) Resembling or characteristic of an iceberg.

   • Remember those signs? They had a sort of icebergy motif and the sign said "IT'S COOL INSIDE!!!" with the icebergy stuff dripping all over the word COOL. — 1991
2. •
   (informal, figurative) Cold or unfriendly in manner.

   • "Well, so it went on for weeks and weeks — Jenny chatting and playing the agreeable to all others, but decidedly icebergy toward me. […] — 1857
3. •
   (informal) Filled with icebergs.

   • For good nautical fun, nothing beats the blizzardy, icebergy waters of the North Sea. — 1996