intransitive verb sneaked or ☆ Informalsnuck, sneaking
- to move quietly and stealthily so as to avoid being seen or heard; go furtively
- to be a sneak; behave in a stealthy, underhanded, or cowardly manner
Origin:
prob. < OE *snecan, akin to snican, to crawl: for IE base see snail
transitive verb
to give, put, carry, take, etc. secretly or in a stealthy, sneaking manner
adjective
without warning; stealthy: a sneak attack