'Thieving' definitions:

Definition of 'thieving'

From: WordNet
adjective
Given to thievery [syn: thieving(a), thievish]
noun
The act of taking something from someone unlawfully; "the thieving is awful at Kennedy International" [syn: larceny, theft, thievery, thieving, stealing]

Definition of 'Thieving'

From: GCIDE
  • Thieve \Thieve\, v. t. & i. [imp. & p. p. Thieved; p. pr. & vb. n. Thieving.] [AS. ge[thorn]e['o]fian.] To practice theft; to steal. [1913 Webster]