ob·so·lete

– adj.
1. no longer in general use; fallen into disuse.
2. of a discarded or outmoded type; out of date.
3. no longer in use, esp., out of use for at least the past century.
4. effaced by wearing down or away.
5. imperfectly developed or rudimentary in comparison with the corresponding character in other individuals, as of the opposite sex or of a related species.

ob·tuse

– adj.
1. not quick or alert in perception, feeling, or intellect; not sensitive or observant; dull.
2. not sharp, acute, or pointed; blunt in form.
3. rounded at the extremity.
4. indistinctly felt or perceived, as pain or sound.