Learn English – “bitter arguments and heated discussions” – meaning of “bitter”

meaning-in-context

I looked up bitter in the dictionary but this word is difficult to understand in the following context:

Why the bitter arguments and heated discussions around Scotland's independence referendum might actually be a good thing.

(Source: CBC Radio)

What does bitter mean here? Is there any difference between bitter arguments and heated discussions?

Best Answer

Here bitter is used for acrimonious -

: bitterness, anger, rancor, resentment, ill feeling, ill will, bad blood, animosity, hostility, enmity, antagonism, waspishness, spleen, malice, spite, spitefulness, peevishness, venom, etc.

A "heated discussion" may not have the rancor, but it certainly has lots of passionate arguments.