ethical philosophy (noun) moral philosophy: moral beliefs
Sinonime: alacrity,
ambition,
anticipation,
ardor, avidity, earnestness,
excitement,
fervor, greediness,
gusto, heartiness, hunger, impatience, impetuosity, intentness, keenness, longing, promptness, quickness,
solicitude,
thirst,
vehemence, voracity, yearning,
zeal,
zest, zing
Antonime: apathy, disinterest