Emphasizing lack of value:
* "The broken vase was worthless, a mere chipped relic of a forgotten era."
* "The promises they made were worthless, leaving us empty and betrayed."
Highlighting uselessness:
* "The flimsy plastic toy was worthless, snapping apart in his hands."
* "His advice was worthless, based on flawed logic and misguided assumptions."
Expressing disdain or disapproval:
* "The politician's empty words were worthless, a mere attempt to appease the public."
* "The counterfeit painting was worthless, a blatant imitation with no artistic merit."
Conveying a sense of futility or insignificance:
* "All his efforts were worthless, the project doomed from the start."
* "In the face of such overwhelming grief, words felt worthless."
To get the best sentence, consider the situation, tone, and the specific object or idea you want to describe as worthless.