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with ease (`easy' is sometimes used informally for `easily');
"she was easily excited"
"was easily confused"
"he won easily"
"this china breaks very easily"
"success came too easy"
-
without question;
"easily the best book she's written"
-
indicating high probability; in all likelihood;
"I might well do it"
"a mistake that could easily have ended in disaster"
"you may well need your umbrella"
"he could equally well be trying to deceive us"