1. Solid – Strongly built or made of strong materials; not flimsy or slender. 2. Rooted - The part of a thing attaching it to a greater or more fundamental whole; the end or base. 3. Heavy – Of great weight; difficult to lift or move. 4. Immobile – Incapable of moving or being moved. 5. Plasticity – The quality of being easily shaped or moulded. 6. Use – Take, hold, or deploy (something) as a means of accomplishing or achieving something; employ. 7. Function – An activity that is natural to or the purpose of a person or thing. 8. Protect – Keep safe from harm or injury. 9. Encapsulate – Enclose (something) in or as if in a capsule. 10. Need – Require (something) because it is essential or very important rather than just desirable. 11. Proportion – The relationship of one thing to another in terms of quantity, size, or number; ratio. 12. Harmony – The combination of simultaneously sounded musical notes to produce a pleasing effect. The quality of forming a pleasing and consistent whole. 13. Scale – Each of the small, thin horny or bony plates protecting the skin of fish and reptiles, typically overlapping one another. 14. Relation – The way in which two or more people or things are connected; a thing's effect on or relevance to another. 15. Symmetry - The quality of being made up of exactly similar parts facing each other or around an axis.