Visual Vocabulary: Atonic
Atonic: lacking muscular tone. As in, “When Popeye traded in his canned spinach for fresh kale, his once whopping forearms became atonic, and Olive Oyl began to use them to play double dutch with Bluto.”
It's ok Popeye, I don't trust kale either. Come to think of it, nor do I trust canned spinach, so I guess I should be safe from either extreme.