immeritorious
Unworthy of merit; not deserving of merit; not meritorious.
Their acceptance indeed, as a formula, may show a willing and tractable spirit, and they may to that extent have a value : but such acceptance differs of course from belief in being admittedly a voluntary act, and not a mere immeritorious and reluctant yielding to the brute weight of evidence.
Where it comes from
im- (“un-”, “not”) + meritorious (“worthy or deserving of merit”); compare the Latin immeritōrius
Adapted from the Wiktionary entry immeritorious (CC BY-SA 4.0).