unconvincing (adjective)

1. The design of the building was unconvincing because it lacked a cohesive vision.

2. The villain's plan was unconvincing, as it was easily foiled by the superhero.

3. The fashion designer's collection received mixed reviews, with some critics calling it unconvincing and lacking originality.

4. The special effects in the horror movie were unconvincing and failed to create a sense of fear.

1. The preacher's explanation for the miracle seemed unconvincing to the skeptical congregation.

2. The punchline of the joke fell flat, leaving an unconvincing ending that didn't generate laughter.

3. The myth about the origin of lightning seemed unconvincing as it lacked a logical explanation.

4. Although the brushstrokes were skillful, the overall composition of the painting was unconvincing and failed to evoke emotion.