irrepressible
🇺🇸
/ˌɪrɪˈpresəbl/
🇬🇧
/ˌɪrɪˈpresəbl/
Full of energy and enthusiasm, unable to be held back.
The irrepressible child ran around the playground with great excitement.
Unable to be controlled or stopped, very strong.
Her irrepressible spirit helped her overcome many challenges.