Good
Good adjective - Firm in one's allegiance to someone or something.
Usage example: a good Democrat who wouldn't dream of voting for a Republican candidate
Irresponsible is an antonym for good.
Irresponsible
Irresponsible adjective - Having or showing a lack of concern for the consequences of one's actions.
Good is an antonym for irresponsible.
Both words in one sentence
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Children Raise You: Played with in Haruko's subplot — she's an immature and irresponsible woman raising her dead sister's child, but she behaves the way she does for a good reason.
Source: Visual Novel / AIR - For a show about one of the world's most irresponsible secret agents, Archer is very good about gun safety.
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Jerkass Façade: Brewster may be a decent and good-hearted man, but since he can't tell anyone why he's doing what he's doing, he frequently comes off as an irresponsible jackass.
Source: Literature / Brewster's Millions
Cite this Source
Irresponsible and Good. (2016). Retrieved 2026, July 21, from https://thesaurus.plus/related/good/irresponsible
Good & Irresponsible. N.p., 2016. Web. 21 Jul. 2026. <https://thesaurus.plus/related/good/irresponsible>.
Irresponsible or Good. 2016. Accessed July 21, 2026. https://thesaurus.plus/related/good/irresponsible.
Google Ngram Viewer shows how "good" and "irresponsible" have occurred on timeline