The phrase "acceptable and justifiable" is correct and usable in written English.
You can use it when discussing whether something is reasonable or defensible in a particular context.
Example: "The committee found the proposed changes to be both acceptable and justifiable given the circumstances."
Alternatives: "reasonable and defensible" or "appropriate and warranted".
The more the Islamic State gained momentum after 2013, the more its declared enemies explored the limits of what is morally acceptable and legally justifiable to combat the group.
"For all ethical and legal purposes, such as marriage and conscription, contemporary Muslim orthodox jurists and scholars have adjusted those ages to what is acceptable and morally justifiable in our time.
"Nato operations that inflict human and material losses to civilians can in no way be justifiable, acceptable and tolerable," Karzai said in a statement.
He was acceptable and accepted".
For the majority of the time, particularly outside of the review process, the statistical equating process runs smoothly, without the need for extensive intervention for the Board, and provides reasonable and justifiable pass mark recommendations which the Board finds acceptable.
"Collectively, we seem to have unthinkingly bought into a narrative of empowered indignation in which 'anger' against 'authority' is deemed to be just and justifiable and any means to vent that 'anger' is rationalized as socially acceptable and politically correct," Harish Khare, a former spokesman for the prime minister, wrote in The Hindu.
"If it is acceptable or justifiable, than I would like to know that," Mr. Leveson said.
His anger was perfectly understandable and justifiable.
The concentration of SiO2 nanoparticles for effective and justifiable usage should be carefully selected.
And there I believe the third world, the developing world, has a big and justifiable complaint.
