1) without respect of persons, impartial
Part of Speech: adverb
Citing in TDNT: 6:779, 950
Adverb from a compound of G1 (as a negative particle) and a presumed derivative of a presumed compound of G4383 and G2983 (compare G4381); in a way not accepting the person, that is, impartially: - without respect of persons.
These two sites give similar information, with the definition from several dictionaries and statistics on the use of the word.
Perseus Digital Library
University of Chicago's Logion lexicon
Thayer's dictionary plus other information.
From this site's dictionary (in Italian)
Click on the first column to search for that word as a form of the root ἀπροσωπολήμπτως; click on the second column to search for that grammatical form of the root ἀπροσωπολήμπτως; click on the third column to search for that word and grammatical form; click on the total to search for the root ἀπροσωπολήμπτως.