gaga

adj. Informal

1. Silly; crazy.
2. Completely absorbed, infatuated, or excited: They were gaga over the rock group's new album.
3. Senile; doddering.

[French, old fool, gaga, of imitative origin.]

adjective

1. Given to lighthearted silliness: empty-headed, featherbrained, flighty, frivolous, frothy, giddy, harebrained, lighthearted, scatterbrained, silly. Slang birdbrained, dizzy. See ability/inability.
2. Afflicted with or exhibiting irrationality and mental unsoundness: brainsick, crazy, daft, demented, disordered, distraught, dotty, insane, lunatic, mad, maniac, maniacal, mentally ill, moonstruck, off, touched, unbalanced, unsound, wrong. Informal bonkers, cracked, daffy, loony. Slang bananas, batty, buggy, cuckoo, fruity, loco, nuts, nutty, screwy, wacky. Chiefly British crackers. Law non compos mentis. Idioms: around the bend, crazy as a loon, mad as a hatter, not all there, nutty as a fruitcake, offout ofone's head, off one's rocker, of unsound mind, out of one's mind, sick in the head, stark raving mad. See sane/insane.

Note: click on a word meaning below to see its connections and related words.

The adjective has 2 meanings:

Meaning #1: mentally or physically infirm with age
  Synonyms: doddering, doddery, senile

Meaning #2: marked by foolish or unreasoning fondness
  Synonyms: crazy, dotty, enamored, infatuated, in love, smitten, soft on, taken with

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Dansk (Danish)
adj. - gaga, senil, lallende

Nederlands (Dutch)
stapelgek, dement

Français (French)
adj. - gâteux

Deutsch (German)
adj. - (ugs.) senil, (Slang) verrückt

Ελληνική (Greek)
adj. - ξεμωραμένος

Italiano (Italian)
rimbambito, pazzo

Português (Portuguese)
adj. - gagá, bobo

Русский (Russian)
бессмысленный, слабоумный, восторженный

Español (Spanish)
adj. - chocho, chalado, lelo, gagá

Svenska (Swedish)
adj. - gaggig, senil, betuttad

中文（简体）(Chinese (Simplified))
老朽的, 狂热的

中文（繁體）(Chinese (Traditional))
adj. - 老朽的, 狂熱的

한국어 (Korean)
adj. - 바보 같은, 열광적인

日本語 (Japanese)
adj. - おめでたい, 変わった

العربيه (Arabic)
‏(صفه) معتوه, مخبول‏

עברית (Hebrew)
adj. - ‮סנילי, שוטה, עובר בטל‬

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baby gaga