dishonourably vs dishonorably

dishonourably and dishonorably both are adverbs.

Word	Noun	Adjective	Verb	Adverb
dishonourably	No	No	No	Yes
dishonorably	No	No	No	Yes

As adverbs, dishonourably and dishonorably are synonyms defined as:

dishonourably and dishonorably: in a dishonorable manner or to a dishonorable degree

Other synonyms of dishonourably include discreditably, disgracefully, ignominiously, ingloriously, shamefully.

dishonourably (adverb)	dishonorably (adverb)
in a dishonorable manner or to a dishonorable degree	in a dishonorable manner or to a dishonorable degree
	with dishonor
	in a dishonorable manner