What are the opposite words for soundness?

The antonyms for the word "soundness" could be "unreliability," "instability," "weakness," "inadequacy," "unsoundness," and "fragility." These words describe the opposite of soundness, which means being in a state of good condition, robustness, and security. Unreliability describes something that is not dependable and trustworthy. Instability implies a lack of firmness or steadiness. Weakness represents a lack of strength or power. Inadequacy means being insufficient or deficient. Unsoundness refers to the unsatisfactory or faulty state of something. Lastly, fragility represents delicateness or vulnerability. These antonyms are essential to expand our vocabulary and help us convey the right message.

Antonym of the day

most doordie
few, little.