arciform vs arched

arciform and arched both are adjectives.

Word	Noun	Adjective	Verb	Adverb
arciform	No	Yes	No	No
arched	No	Yes	No	No

As adjectives, arciform and arched are synonyms defined as:

Other synonyms of arciform include arced, arching, arcuate, bowed.

arciform (adjective)	arched (adjective)
forming or resembling an arch	constructed with or in the form of an arch or arches
	forming or resembling an arch