be cocksure of (oneself)



be cocksure of (oneself)

To be completely certain of oneself or one's actions, to the point of overconfidence. You seem pretty cocksure of yourself—do you really know how to handle that machine?
See also: of

Common Names:

NameGenderPronouncedUsage
Gualterio-Spanish (Rare)
Volodislavu-Medieval Slavic
Lore (1)LO-rəGerman
Elipheleti-LIF-ə-let (English), ee-LIF-ə-let (English)Biblical
Akamu-Hawaiian
Verginius-Ancient Roman