amaritudo (PROP. and figuratively), amaritas (PROP.: this [Vitr.] and amarities, Catullus; less good titan amaritudo); acerbitas (harshness, unfriendliness; calamilous state); gravitas (violence, vehemence); ira, bilis, odium (anger, hate); aegritudo, moeror (grief). A bitterness of tone, amaritudo vocia. To write to one with great bitterness, acerbissime alicui scribere.