tumbly

English

Etymology

tumble +‎ -y

Adjective

tumbly (comparative more tumbly, superlative most tumbly)

1. Moving by, or as if, tumbling.
   • 1986, Ann Marie Maderis, Bacterial Chemotaxis: Che Genes and Their Products, page 9:

     Chey is thought to function at the flagellar motor to elicit a tumbly behavior (Parkinson, 1977). Mutations in chey result in incessantly smooth-swimming behavior.

2. Heaped up in a formless mass; tumbled together.
   • 1934, Nature Magazine, volumes 23-24, page 194:

     I suppose it is unnecessary to stress the importance of color filters in photography. A sunset, a marine view or a tumbly mass of clouds will show the necessity of a set of color filters.