1) not rising far from the ground
2a) as a condition, lowly, of low degree
2b) brought low with grief, depressed
2c) lowly in spirit, humble
2d) in a bad sense, deporting one's self abjectly, deferring servilely to others
Part of Speech: adjective
Citing in TDNT: 8:1, 1152
Of uncertain derivation; depressed, that is, (figuratively) humiliated (in circumstances or disposition): - base, cast down, humble, of low degree (estate), lowly.
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 ταπεινός; click on the second column to search for that grammatical form of the root ταπεινός; click on the third column to search for that word and grammatical form; click on the total to search for the root ταπεινός.