
keck
cheeky / bold
Acting confidently in a charming, brave, or slightly cheeky and disrespectful way.
Mit einem kecken Grinsen bat sie um eine Gehaltserhöhung.
With a cheeky grin, she asked for a raise.
cheeky / bold
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cheeky / bold
Acting confidently in a charming, brave, or slightly cheeky and disrespectful way.
Mit einem kecken Grinsen bat sie um eine Gehaltserhöhung.
With a cheeky grin, she asked for a raise.

bold / brave
An outdated term for bold, daring, or brave.
Der kecke Recke zog furchtlos in die Schlacht.
The bold warrior marched fearlessly into battle.
The word 'keck' (cheeky/bold) describes an impudent manner that is often perceived as charming, witty, or brave. It usually has a positive or admiring connotation and is often used for children or in playful situations.
Das kleine Mädchen gab dem Kellner eine kecke Antwort.
The little girl gave the waiter a cheeky answer.
'Keck' (cheeky/bold) is often used to describe a specific action or expression. Typical combinations are 'ein keckes Lächeln' (a cheeky smile), 'eine kecke Frage' (a cheeky question), 'ein kecker Spruch' (a cheeky remark), or 'keck antworten' (to answer cheekily).
Seine kecke Frage brachte alle zum Lachen.
His cheeky question made everyone laugh.
The meaning 'kühn' (bold) or 'tapfer' (brave) is outdated. It is found almost only in historical texts, fairy tales, or old-fashioned poetry. In modern German, 'keck' (cheeky/bold) is no longer used in this sense.
In der alten Sage wird von einem kecken Helden berichtet.
In the old legend, a bold hero is mentioned.
cheeky / impertinent
Frech and keck can both describe a bold, slightly provocative manner. However, frech can sound clearly disrespectful and negative, while keck usually sounds charming and approving, though somewhat elevated or old-fashioned. Use frech when a possible overstepping of boundaries is meant, and keck for charming self-confidence.

Der Junge gab seiner Lehrerin eine kecke Antwort und brachte sie damit zum Lachen.
The boy gave his teacher a cheeky reply, making her laugh.
Der Junge gab seiner Lehrerin eine freche Antwort und grinste dabei.
The boy gave his teacher a cheeky reply and grinned.