Lewis & Short

Parsing inflected forms may not always work as expected. If the following does not give the correct word, try Latin Words or Perseus.

indĭsertē, adv., v. indisertus, a, um, fin.

in-dĭsertus, a, um, adj., not eloquent (class.): Academicus, Cic. N. D. 2, 1, 1.
Of inanim. and abstr. things: prudentia, at a loss for words, Cic. de Or. 3, 35, 142.
Adv.: indĭsertē, not eloquently (rare but class.): orationem non indiserte collaudavit, Cic. Q. Fr. 2, 1, 3.