Synonyms of the word 
GRADABLE → HIERARCHAL - HIERARCHIC - HIERARCHICAL
gradable
- adj. Able to form degrees or grades.
- n. (linguistics) A word that can be inflected to specify the degree or grade of something.
hierarchal
- adj. Relating to a hierarch.
hierarchic
- adj. hierarchal.
hierarchical
- adj. Pertaining to a hierarchy.
- adj. Of or pertaining to an ecclesiastic or priestly order.
- adj. Classified or arranged according to various criteria into successive ranks or grades.
If you are interested in words, visit the following sites :
- wiktionary.org/gradable For complete definition of a word
- 1word.ws/gradable to play with words, suffixs, prefixs, etc.