I. ˈhedē, -di adjective
( -er/-est )
Etymology: Middle English hevedy, hedy, from heved, hed head + -y — more at head
1.
a. : willful , rash
the flow of the story is interrupted by … the giving of heady opinions — S.L.A.Marshall
b. : violent , impetuous
heady waters of the swollen river
heady tempest
2.
a. : tending to make giddy or light-headed : intoxicating
heady perfume
heady triumphs
the heady air of spring
b. : giddy , intoxicated , exhilarated
students showing themselves heady with ideas — Time
3. : having or showing good judgment : shrewd , clever , smart
ran a heady race
one of the nimblest and headiest … quarterbacks — Time
II. adjective
: intellectually stimulating or demanding
a heady combination of classics and literature of the counterculture — Elin Schoen