Found 2 items, similar to sneakingly.
English → English (WordNet) Definition: sneakingly sneakingly adv : in a sneaky manner; “I always felt sneakingly that I wanted to be a concert pianist”
English → English (gcide) Definition: Sneakingly Sneaking \Sneak"ing\, a. Marked by cowardly concealment; deficient in openness and courage; underhand; mean; crouching. -- Sneak"ing*ly, adv. -- Sneak"ing*ness, n. [1913 Webster]