After the safety audit, the engineering team chose to undesign the prototype rather than proceed to production.

The room's charm came from its undesigned imperfections that made it feel lived-in.

Her undesigning smile reassured everyone that there was no hidden motive behind her offer.

The hikers were guided to an undesignated trail to avoid the crowded paths.

The ancient fortress had become undesignable due to its irregular foundations.

When repeated tests fail to meet standards, the lead engineer undesigns the prototype and returns to the drawing board.

The artist admired the undesignedness of the abandoned garden, where plants grew in spontaneous patterns.

The scientist undesignedly discovered a new reaction while attempting to replicate previous results.

She smiled undesigningly, unaware of the attention she had drawn.

Her undesigningness was evident in the simple stitches and unadorned hem of the dress, which felt more honest than any fashion statement.