IPA: //ʌnˈdɛkədənt//
KK: /ʌnˈdɛkədənt/
Not characterized by decay or decline; maintaining a state of growth or vitality.
The artist's work is often described as undecadent, reflecting a sense of renewal and strength.
Undecadent is formed from "un-" (meaning not) and "decadent" (from Latin "decadentem", meaning falling or declining). The word describes something that is not in a state of decline or decay.
Think of 'not' ('un-') being combined with 'falling' ('decadent') to remember that 'undecadent' means not falling or declining.