half-timbered vs half-timber

half-timbered and half-timber both are adjectives.

Word	Noun	Adjective	Verb	Adverb
half-timbered	No	Yes	No	No
half-timber	No	Yes	No	No

As adjectives, half-timbered and half-timber are synonyms defined as:

half-timbered and half-timber: having exposed wood framing with spaces filled with masonry, as in Tudor architecture

half-timbered (adjective)	half-timber (adjective)
having exposed wood framing with spaces filled with masonry, as in Tudor architecture	having exposed wood framing with spaces filled with masonry, as in Tudor architecture