This is a problem that should not be 'taken lightly'. [=this is a problem that should be treated seriously]
Considering the harm he did, he's 'gotten off lightly' with only a warning.
Our troops were armed too 'lightly' to take on the heavily armed invaders.
(..) to choke a Hungry Hungry Hippo. -Think you're gettin' old? -Wow. Well, stop your worryin'. Our repair spa will keep you stuffed, puffed, and lightly buffed. And this, well, this is where l live. lt's Ken's Dream House. lt has a disco, it's got a dune buggy. And a whole room (..)2010 Toy Story 3