rapidless

Adjective

 * 1) (of a river or a stream) Without rapids.
 * 2) (of an area or terrain) having no fast rivers or streams
 * 3) * 1986, {unattributed}, Aquatic Sciences and Fisheries Abstracts, Volume 16
 * "The Zambezi contains at least 14 species that were not found in the Kwando River; ten of these species are strongly rheophilic, explaining their absence in the rapidless and rockless Kwando-Linyanti."
 * "The Zambezi contains at least 14 species that were not found in the Kwando River; ten of these species are strongly rheophilic, explaining their absence in the rapidless and rockless Kwando-Linyanti."