Collocations for justified - adj.

be, feel, prove, seem

amply
The suspicion proved amply justified.

completely, entirely, fully, perfectly, quite, totally
hardly
partially, partly
clearly
easily
a logical and easily justified decision

economically, ethically, financially, legally, morally, rationally, scientifically, theoretically
Can her actions be morally justified?

in
She felt fully justified in asking for a refund.