Intelligent
Intelligent adjective - Having or showing quickness of mind.
Usage example: his intelligent response to the emergency averted a disaster
Wacky is an antonym for intelligent.
Wacky
Wacky adjective - Showing or marked by a lack of good sense or judgment.
Usage example: one club member whose wacky ideas for fund-raisers usually produced groans
Intelligent is an antonym for wacky.
Both words in one sentence
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Michael LeRoi is an extremely intelligent, well-spoken English major who never acts in a stereotypically "wacky" manner.
Source: Video Game / Shadow Man - Leon is very intelligent but also stubborn and short sighted, making it hard for him to adjust to the wacky Kulyenchikov.
Source: Theatre / Fools -
He's also probably the least intelligent of the regular cast (apart from wacky neighbors like Floyd and Heywood), though he comes across as one of the most soulful because he is so quiet.
Source: The Quiet One
Cite this Source
Wacky and Intelligent. (2016). Retrieved 2026, August 15, from https://thesaurus.plus/related/intelligent/wacky
Intelligent & Wacky. N.p., 2016. Web. 15 Aug. 2026. <https://thesaurus.plus/related/intelligent/wacky>.
Wacky or Intelligent. 2016. Accessed August 15, 2026. https://thesaurus.plus/related/intelligent/wacky.
Google Ngram Viewer shows how "intelligent" and "wacky" have occurred on timeline