What does "howsoever" mean?

Regardless of the way in which.

What is a synonym for "howsoever"?

Common synonyms include: anyhow, even so, however, nevertheless, whatever extent, whatever way.

Pronounced //ˌhaʊsoʊˈɛvəɹ//.

/ˌhaʊsoʊˈɛvəɹ/ adv

adv ·Rare ·Advanced level

Adverb

1
Regardless of the way in which.
"Howsoever they pleaded, their pleas went unheard."
2
In any manner whatsoever.
"The party to this agreement may use the property whensoever and howsoever he or she pleases."
3
To whatever degree or extent.
"Their evidence, howsoever true it may have been, was not believed."

"Howsoever they pleaded, their pleas went unheard."

From Middle English howsoevere, how-so-evere, how so evere. By surface analysis, how + so + ever.