Unworthy
Part of speech: adjective
Definition: Not worthy; lacking value or merit; worthless.
Example sentence: If ever I feel the soul within me elevate and expand to those dimensions not wholly unworthy of its Almighty Architect, it is when I contemplate the cause of my country, deserted by all the world beside, and I standing up boldly and lone and hurling defiance at her victorious oppressors.
Worthless
Part of speech: adjective
Definition: Not having worth and use, without value, inconsequential.
Example sentence: My dad died when I was young; my mom remarried with more haste than sense to a fellow... he wasn't evil or anything, but he was worthless.