well-meaning vs unthreatening

well-meaning and unthreatening both are adjectives.

Word	Noun	Adjective	Verb	Adverb
well-meaning	No	Yes	No	No
unthreatening	No	Yes	No	No

As adjectives, well-meaning and unthreatening are synonyms defined as:

well-meaning (adjective)	unthreatening (adjective)
not unfriendly or threatening	not unfriendly or threatening
marked by good intentions though often producing unfortunate results