insatiable
adjective /ɪnˈseɪʃəbl/
  /ɪnˈseɪʃəbl/
- always wanting more of something; not able to be satisfied- an insatiable appetite/curiosity/thirst
- There seems to be an insatiable demand for more powerful computers.
- The public seems to have an insatiable appetite for celebrity news.
 Oxford Collocations DictionaryInsatiable is used with these nouns:- appetite
- curiosity
- demand
- …
 Word Originlate Middle English: from Old French insaciable or Latin insatiabilis, from in- ‘not’ + satiare ‘fill, satisfy’, from satis ‘enough’.