sneakishly

English

Etymology

sneakish +‎ -ly

Adverb

sneakishly (comparative more sneakishly, superlative most sneakishly)

1. In a sneakish manner.
   • 1912, G. K. Chesterton, “The Sectarian of Society”, in A Miscellany of Men‎^[1]:

     […] when men come together to profess a creed, they come courageously, though it is to hide in catacombs and caves. But when they come together in a clique they come sneakishly, eschewing all change or disagreement, though it is to dine to a brass band in a big London hotel.