Quick Definition
that cannot be searched into, inscrutable
Strong's Definition
not searched out, i.e. (by implication) inscrutable
Derivation: from G1 (Α) (as a negative particle) and a presumed derivative of G1830 (ἐξερευνάω);
KJV Usage: unsearchable
Thayer's Greek Lexicon
ἀνεξερευνητος, T Tr WH ἀνεξεραύνητος (cf. Tdf. Proleg., p. 81; Buttmann, 58 (50); Sturz, De dial. Maced. et Alex., p. 117: see ἐραυνάω), ἀνεξερευνητον (alpha privative and ἐξερευνάω), that cannot be searched out: Rom_11:33. (Symm. Pro_25:3; Jer_17:9. Dio Cassius, 69, 14.)
Mounce Concise Greek Dictionary
ἀνεξεραύνητος anexeraunētos 1x
also spelled ἀνεξερεύνητος , unfathomable, incapable of human explanation, Rom_11:33
Abbott-Smith Greek Lexicon
** ἀνεξεραύνητος
( Rec. -εύνητος , as in Attic ; M , Pr., 46), -ον ( <ερευνάω ),
[in Sm . (-ευ -): Pr., 25:3 * ;]
unsearchable: Rom_11:33 .†
Moulton & Milligan — Vocabulary of the Greek NT
ἀνεξεραύνητος [page 41]
For this NT ἅπ . εἰρ . ( Rom_11:33 ), Nδgeli (p. 23) cites, in addition to the references in Grimm-Thayer, a fragment of Heraclitus in Clem. Alex. Strom. II. 17, p. 437 P (fr. 18 Diels). On the spelling see Proleg. p. 46.
STEPBible — Tyndale Abridged Greek Lexicon
ἀνεξεραύνητος
(Rec. -εύνητος, as in Attic; M, Pr., 46), -ον (ερευνάω), [in Sm. (-ευ-): Pr., 25:3 * ;]
unsearchable: Rom.11:33.†
(AS)