Antonyms of adj noteworthy

2 senses of noteworthy

Sense 1
noteworthy, notable -- (worthy of notice; "a noteworthy advance in cancer research")

INDIRECT (VIA worthy) -> unworthy -- (lacking in value or merit; "dispel a student whose conduct is deemed unworthy"; "unworthy of forgiveness")

Sense 2
noteworthy, remarkable -- (worthy of notice; "a noteworthy fact is that her students rarely complain"; "a remarkable achievement")

INDIRECT (VIA significant) -> insignificant, unimportant -- (devoid of importance, meaning, or force)

Similarity of adj noteworthy

2 senses of noteworthy

Sense 1
noteworthy, notable -- (worthy of notice; "a noteworthy advance in cancer research")
       => worthy (vs. unworthy) -- (having worth or merit or value; being honorable or admirable; "a worthy fellow"; "a worthy cause")

Sense 2
noteworthy, remarkable -- (worthy of notice; "a noteworthy fact is that her students rarely complain"; "a remarkable achievement")
       => significant (vs. insignificant), important -- (important in effect or meaning; "a significant change in tax laws"; "a significant change in the Constitution"; "a significant contribution"; "significant details"; "statistically significant")