improve upon

Enhance what exists

To improve upon something is to make it better than a previous version or standard: The sequel improved upon the original in every way.

The phrase implies comparison—you're not just improving something in isolation, but surpassing what came before.

Scientists are working to improve upon existing treatments.

Often interchangeable with improve on.

Related

elevate · raise the bar · adjust · outstrip · up the ante · rectify · eclipse · fine-tune · outperform · polish · hone · iron out · smooth over · ameliorate · leapfrog · build on · better · go one better

Opposites
quality change

improve uponmake worse

Increase severity of

worsen · degrade · diminish · damage · impair

modification vs. preservation

improve uponleave alone

Refrain from disturbing

preserve · maintain · leave well enough alone · settle for · retain

approach to creation

improve uponstart fresh

Begin again from zero

start from scratch · start over · reinvent · abandon

Family

improve, upon, improvement, improved, improving, improves, improvements, unimproved, improvable

Familiarity
Top 100,000
Profile
Known to kids · Used worldwide · Timeless · Abstract · Positive · Everyday, not technical · Rated G