Synonyms of improved

2 Syllables
mended, betters, reset, better
3 Syllables
redacted, revised, upgraded, reformed, enhanced, renewed, enriched, repaired, corrected, augmented, amended, bettered, refined
4 Syllables
renovated, refurnished, recovering, modernized, redesigned, remodeled, reorganized
5 Syllables
reconstituted, elaborated, ameliorated
6 Syllables
rehabilitated