Noah Webster's Dictionary (a.) Incapable of being measured; indefinitely extensive; vast.

Multi-Version Concordance Immeasurable (2 Occurrences) Ephesians 1:19 and what is the exceeding greatness of his power toward us who believe, according to that working of the strength of his might (See RSV) Ephesians 2:7 that in the ages to come he might show the exceeding riches of his grace in kindness toward us in Christ Jesus; (See RSV)