bowed vs arched

bowed and arched both are adjectives.

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

As adjectives, bowed and arched are synonyms defined as:

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

bowed (adjective)	arched (adjective)
of a stringed instrument; sounded by stroking with a bow	constructed with or in the form of an arch or arches
forming or resembling an arch	forming or resembling an arch
have legs that curve outward at the knees
showing an excessively deferential manner