Bad
Bad adjective - Falling short of a standard.
Usage example: a bad first attempt at making meat loaf resulted in a soggy, inedible mess
Defective is a synonym for bad in inferior topic. In some cases you can use "Defective" instead the word "Bad" as an adjective or a noun, when it comes to topics like faulty, substandard, poor quality. popular alternative
Defective
Mutual synonyms
Both words in one sentence
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Rin ends up as one of the last people on Earth to wear glasses (see below) since she was born with bad eyesight and attained her immortality millennia before corrective surgery - so if she had any now, her eyes would just heal back to their original, defective state.
Source: Anime / Mnemosyne -
Deadpan Snarker: Rockford Defective Detective: Rockford was an ex-con, with all the associated bad karma it brought.
Source: Series / The Rockford Files -
The situation was so bad Atari ultimately took millions of dollars' worth of worthless cartridges (together with defective consoles and accessories) and buried them all in a landfill in Alamogordo, New Mexico.
Cite this Source
Defective and Bad. (2016). Retrieved 2026, July 21, from https://thesaurus.plus/related/bad/defective
Bad & Defective. N.p., 2016. Web. 21 Jul. 2026. <https://thesaurus.plus/related/bad/defective>.
Defective or Bad. 2016. Accessed July 21, 2026. https://thesaurus.plus/related/bad/defective.
Google Ngram Viewer shows how "bad" and "defective" have occurred on timeline