Cool
Cool adjective - Having or showing a lack of friendliness or interest in others.
Frightened is an antonym for cool.
Frightened
Frightened adjective - Filled with fear or dread.
Usage example: I am frightened of the dark
Both words in one sentence
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Sarah in Tales of an Mazing Girl isn't completly invulnerable-but notably she acts that way with a cool, calm demeanor that is never frightened of the Monsters, ninjas, or Star Trek Cosplayers masquerading as ninjas she faces.
Source: Invincible Hero -
However, in spite of the book's ensemble cast, he stands out as pretty much the main viewpoint character, whose thoughts we hear the most, and behind the painfully cool exterior he's frightened, weary, and eventually very angry, which causes him to rebel against both Heaven and Hell.
Source: Broken Ace -
She's a boyish looking and cool acting "gang" leader who comes off as a bit scary and even refers to herself as "ore"- but she's actually surprisingly shy, easily frightened girl who not-so-secretly loves cute things and even keeps a frilly skirt hidden somewhere.
Source: Tomboy with a Girly Streak
Cite this Source
Frightened and Cool. (2016). Retrieved 2026, August 08, from https://thesaurus.plus/related/cool/frightened
Cool & Frightened. N.p., 2016. Web. 08 Aug. 2026. <https://thesaurus.plus/related/cool/frightened>.
Frightened or Cool. 2016. Accessed August 08, 2026. https://thesaurus.plus/related/cool/frightened.
Google Ngram Viewer shows how "cool" and "frightened" have occurred on timeline