Original Word: ἀνεξερεύνητος, ον
Part of Speech: Adjective
Transliteration: anexeraunétos
Phonetic Spelling: (an-ex-er-yoo'-nay-tos)
Short Definition: that cannot be searched into, inscrutable
Definition: that cannot be searched into, inscrutable, unfathomable.

419 aneksereúnētos (from 1 /A "not," which negates the intensified term, 1830 /eksereunáō, "search out diligently") – properly, impossible to fully investigate, no matter how great the effort (inquiry); unsearchable (inscrutable); impossible to discover; elusive, going beyond all human ability to even locate.

419 /aneksereúnētos ("unsearchable"), used only in Ro 11:33, refers to God's perfect wisdom in creating one people for Himself (composed of all OT and NT believers). Indeed, the Lord continuously does the unexpected, transforming the "ordinary" into the "extraordinary ordinary" (with its eternal value).

Ro 11:33: "Oh, the depth of the riches both of the wisdom and knowledge of God! How unsearchable (419 /aneksereúnētos) are His judgments and unfathomable His ways!" (NASU).

Word Origin
from alpha (as a neg. prefix) and exeraunaó
Definition
unsearchable
NASB Translation
unsearchable (1).