DictionarydaffySilly or eccentric
adjective

daffy

DAF-ee/ˈdæfi/

Silly or amusingly eccentric.

His daffy sense of humor keeps us all laughing.

A cheerfully eccentric young man wears a kitchen colander as a hat while solemnly watering a single plastic flower in a teacup.
Etymology

Daffe, “a halfwit,” is one possible base, with -y marking a quality; daft is another, and daffe’s own origin is uncertain. Earlier meanings “unintelligent” and “crazy” connect to the milder sense of silliness or eccentricity.

More examples

  • She tells a daffy story about a talking refrigerator.
  • Wearing a cape to breakfast seems a little daffy.
  • Each costume is daffier than the last.

Forms

daffy · daffier · daffiest

daffiness noun — The quality of being amusingly silly.

Similar words

goofy
Suggests playful silliness, often with awkward behavior or appearance.
eccentric
Emphasizes unusual habits or tastes, not necessarily silliness.
silly
Can suggest poor judgment without daffy's amused, affectionate tone.