What is a synonym for "super-duper"?

Common synonyms include: super-superlative.

How do you pronounce "super-duper"?

Pronounced //ˈs(j)uː.pəˌduː.pə(ɹ)//.

//ˈs(j)uː.pəˌduː.pə(ɹ)// adj, adv, slang

adj, adv, slang ·Moderate ·College level

Adjective

1
Very excellent; truly great. dated, informal
"Near-synonym: super-superlative"
2
Major, total, thorough. informal
"Hello Kitty is having a Valentine's Day party for all her friends... But when Hello Kitty hurts her leg, all her plans are ruined! Will her party be a super-duper success or a super-duper disaster?"

Adverb

1
Very; extremely. informal
"No, you are entitled to your own opinion, alright? I'm the tart here. Cher, you've been nothing but super-duper nice to me."

"If I were some kind of rocket scientist, then this algebra would be super-duper easy-peasy."

Rhyming reduplication, from super (1940).

Data sourced from Wiktionary, WordNet, CMU, and other open linguistic databases. Updated March 2026.