bettered
bet-tered
verb
To have improved something or someone, or surpassed a previous standard or achievement.
"The athlete bettered her personal best time."
Thesaurus
Synonyms: best, better, improve, ameliorate, meliorate, healthier, fitter, wagerer, bettor, punter, amend, amended
Antonyms: aggravate, decline, exacerbate, exasperate, worse, worsen, worsened