Elementary (A2)
IPA: /səkˈsɛsfəli/
KK: /səksɛsˈfʊli/
Definition
In a way that achieves a desired outcome or goal; without failure.
Example
She completed the project successfully, impressing her boss.
Conversation

Did you hear about Sarah's project?

Yeah! She managed to complete it successfully despite the challenges.

I was really impressed by how she handled everything.

Same here! It's great to see her hard work pay off.
Synonyms & Antonyms
Synonyms
effectively
efficiently
triumphantly
Antonyms
ineffectively
unsuccessfully
poorly
Root Explanation
Successfully → It is formed from "success" (from Latin "successus", meaning outcome or result) and "-fully" (meaning in a manner full of). The word "successfully" means in a manner that achieves a desired outcome or result.
Memory Tip
Think of achieving a desired "outcome" ('success') in a manner that is 'full' of accomplishment.
Visually Confused Words
unsuccessfully
presuccessfully
semisuccessfully
unsuccessful
insuccessful
presuccessful
nonsuccessful