I second this. From Merriam-Webster:

just, adjective

1. a : having a basis in or conforming to fact or reason : reasonable

   had just reason to believe he was in danger

   b : conforming to a standard of correctness : proper

   just proportions

   c archaic : faithful to an original

2. a(1) : acting or being in conformity with what is morally upright or good : righteous

   a just war

   (2) : being what is merited : deserved

   a just punishment

   b : legally correct : lawful

   just title to an estate