inestimable
adjective /ɪnˈestɪməbl/
/ɪnˈestɪməbl/
(formal)- too great to calculate
- The information he provided was of inestimable value.
Oxford Collocations DictionaryInestimable is used with these nouns:- value
Word Originlate Middle English: via Old French from Latin inaestimabilis, from in- ‘not’ + aestimabilis (from aestimare ‘to estimate’).