Yes, loosely is a word.
The jacket was very loosely fitted.
Hold On Loosely was created in 1981.
What are atoms bounded loosely
__________ electrons are loosely held to a positive nucleus.
The ropes were tied so loosely the boat drifted away from the dock. Loosely tied shoe laces will come undone.
Materials in which the electrons are loosely bound are called conductors.
an electron loosely bound to its nucleus is called a free electron.
The state of matter in which particles are loosely connected is gaseous state
Apocalypse now was loosely based on Conrad's Heart of Darkness
An analogy that is loosely related to the circulatory system is the vascular system of a plant.