Resume wording
"Successfully" is the most deletable word on most resumes. If the bullet states an outcome, success is implied; if it does not, the adverb cannot supply it. It also raises the question of which of your other bullets were unsuccessful.
These are not interchangeable. Picking the wrong one is how a bullet ends up claiming something you did not do, so the second column matters more than the first.
Before
Successfully completed the CRM migration.
After
Completed the CRM migration two weeks early with zero data loss across 60k records.
The verb is the smaller half of that change. What actually makes the second version work is the number, and no synonym can supply one for you.
Keep it where failure was the realistic default and survival is the story: "successfully defended the patent", "successfully recovered the account after a failed implementation".
Rewriting one bullet is easy. Rewriting forty against a specific job posting is the part people give up on. Tailor CV rewrites your resume against the posting you are actually applying to, and you edit what it gives back.