Extended Strong's Greek Lexicon (Abbott-Smith based)
unsearchable
Usage: ἀνεξιχνίαστος, -ον (ἀ- neg., ἐξιχνιάζω, to track out; ἴχνος) [in LXX: Job.5:9 9:10 34:24 (חֵקֶר אַיִן)* ;] that cannot be traced out: Rom.11:33, Eph.3:8 (MM, VGT, see word).† (AS)