Word Of The Day: Apropos
with reference to; concerning.“she remarked apropos of the initiative, ‘It’s not going to stop the abuse’”
synonyms: with reference to, with regard to,with respect to, regarding,concerning, respecting, on the subject of, in the matter of, touching on, dealing with, connected with, in connection with, about, re;anent“value judgements apropos of particular works of art”
very appropriate to a particular situation.“the song feels apropos to a midnight jaunt”
synonyms: appropriate, pertinent, relevant,apposite, apt, applicable, suitable,germane, material, becoming,befitting, significant, to the point/purpose; Moreopportune, felicitous, timely“the word ‘conglomerate’ was decidedly apropos” antonyms: inappropriate
mid 17th century: from French à propos ‘(with regard) to (this) purpose’.
Source: Word Of The Day: Equanimity.
I believe that keeping silent when an injustice is taking place is condoning it.