overconfident
adjective
[ əʊvəˈkɒnfɪd(ə)nt ]
• excessively confident.
• "Sarah's downfall came through being overconfident"
Similar:
cocksure,
smug,
conceited,
self-assured,
self-assertive,
unabashed,
brash,
swaggering,
blustering,
overbearing,
overweening,
presuming,
presumptuous,
riding/heading for a fall,
foolhardy,
cocky,
too big for one's boots,
hubristic,
