dizzy

UK: /ˈdɪzi/ US: /ˈdɪzi/ ,(diz′ē)

Inflections of 'dizzy' (adj):

dizzier

adj comparative

dizziest

adj superlative

Inflections of 'dizzy' (v): (⇒ conjugate)

dizzies

v 3rd person singular

dizzying

v pres p

dizzied

v past

dizzied

v past p

WordReference Random House Learner's Dictionary of American English © 2025

diz•zy /ˈdɪzi/   adj., -zi•er, -zi•est, v., -zied, -zy•ing. 
adj. 

1. having a sensation of things going round and round; giddy:
   I always feel dizzy after riding the merry-go-round.
2. bewildered;
   confused:
   I came out of the lecture a little dizzy from all those facts and figures.
3. causing giddiness or confusion;
   very great:
   [before a noun] a dizzy height.
4. Informal Terms foolish;
   silly:
   He can be really dizzy around pretty girls.

v. [~ + object]

5. to make dizzy:
   We drove at speeds that dizzied me.

diz•zi•ly /ˈdɪzəli/  adv.: 

I staggered dizzily.

diz•zi•ness, n. [uncountable]
diz•zy•ing, adj.: 

drove at dizzying speed.

WordReference Random House Unabridged Dictionary of American English © 2025

diz•zy  (diz′ē), adj., -zi•er, -zi•est, v., -zied, -zy•ing. 
adj. 

1. having a sensation of whirling and a tendency to fall;
   giddy;
   vertiginous.
2. bewildered;
   confused.
3. causing giddiness or confusion:
   a dizzy height.
4. heedless;
   thoughtless.
5. Informal Terms foolish;
   silly.

v.t. 

6. to make dizzy.

• bef. 900; Middle English dysy, Old English dysig foolish; cognate with Low German düsig stupefied

diz′zi•ly, adv. 
diz′zi•ness, n. 

Collins Concise English Dictionary © HarperCollins Publishers::

dizzy / ˈdɪzɪ/ adjective ( -zier, -ziest)

1. affected with a whirling or reeling sensation; giddy
2. confused or bewildered
3. causing or tending to cause vertigo or bewilderment
4. foolish or flighty

verb ( -zies, -zying, -zied)

1. (transitive) to make dizzy

Etymology: Old English dysig silly; related to Old High German tusīg weak, Old Norse dos quiet

ˈdizzily adverb

ˈdizziness noun