Was heißt »vertretbar« auf Englisch?

Das Adjektiv »vertretbar« lässt sich wie folgt von Deutsch auf Englisch übersetzen:

Synonyme

That's really not acceptable.
After several weeks of hard bargaining, an agreement was reached which both sides found acceptable.
That sort of behavior isn't acceptable.
Is the price acceptable?
Violence is never acceptable.
A solution acceptable to all parties was finally reached.
A book is always an acceptable gift.
Thank you, tea would be very acceptable.
The solution which was suggested was acceptable to all parties.
Tom's proposal wasn't acceptable.
This is not acceptable.
That's not acceptable.
That's acceptable.
It's acceptable.
Tom's behavior wasn't acceptable.
There are conditions under which breaking a promise or telling a lie are acceptable.
Kissing one's spouse in public is considered acceptable behavior in some countries.
His proposal was not acceptable.
His ideas are too radical to be acceptable to most people.
His work was acceptable, but far from excellent.