How Can I Use "Concordant" In A Sentence?

Solution 1:

"The texts were concordant on the proper use of quotation marks."

"The movie's opening-weekend gross was fairly concordant with box-office returns for that genre." (example from merriam-webster.com)

I would say "unanimous" means perfect, universal agreement, while "concordant" means general compatibility of opinion or ideas with perhaps some differences on specifics. Better synonyms for concordant would be "harmonious" or "nonconflicting."

Solution 2:

the texts had been concordant on how _".

Er, probably something like

the texts concorded on how ...

would be more natural.

It's difficult to use the past perfect without any context.

The texts had concorded on how to make the perfect omelette, yet Sarah discovered that despite all their advice, she could indeed make an omelette without breaking eggs.