mea ‧ sure ‧ less /ˈmeʒələs $ -ʒər-/ BrE AmE adjective literary
[ Word Family: adjective : ↑ measurable ≠ ↑ immeasurable , ↑ measured , ↑ measureless ; noun : ↑ measure , ↑ measurement ; verb : ↑ measure ; adverb : ↑ measurably ≠ ↑ immeasurably ]
too great to be measured SYN immeasurable :
Otto had measureless charm.