He is lackering the furniture to give it a glossy finish.

He lackered the wooden table to give it a glossy finish.

You lackest the necessary skills for this job.

He performed lacklustrely in the competition.

He had a lackadaisy attitude towards his work.

Lackadaisy, I forgot to bring my umbrella.

The lacklustreness of the performance was evident.

The lacklusterness of the performance was evident.

The lackingness of resources hindered the progress of the project.

He is lackeying to his boss.