rockily

1. In an uneven way; in a rocking manner.

   https://web.archive.org/web/20050217043222/http://www.talkcinema.com/reviews/cannes9907.html French actress Sophie Marceau entered rockily on heels

2. In a manner suggestive of a rock or rocks.

   http://www.dartmouth.edu/~doc/mountainbiking/roundsmartsmountain/ After the trail reaches the height of land, it descends sometimes steeply and often rockily.

3. Unsteadily; inconsistently or resulting in volatility.

4. In a manner suggestive of rock music.

regular