5. Weak in intellect; destitute of ordinary strength of mind; foolish; witless; simple; as, a silly woman.
6. Proceeding from want of understanding or common judgment; characterized by weakness or folly; unwise; absurd; stupid; as, silly conduct; a silly question.
Syn.
— Simple; brainless; witless; shallow; foolish; unwise; indiscreet.
See Simple.
SILLYHOW Sil"ly*how, n. Etym: [Prov. E. silly-hew; cf. AS. sælig happy, good, and hufe a cap, hood. See Silly, a.]
Defn: A caul. See Caul, n., 3. [Obs. or Prov. Eng. & Scot.]
SILO
Si"lo, n. Etym: [F.]
Defn: A pit or vat for packing away green fodder for winter use so as to exclude air and outside moisture. See Ensilage.
SILT Silt, n. Etym: [OE. silte gravel, fr. silen to drain, E. sile; probably of Scand. origin; cf. Sw. sila, prob. akin to AS. seón to filter, sigan to fall, sink, cause to sink, G. seihen to strain, to filter, OHG. sihan, Icel.sia, Skr. sic to pour; cf. Gr. Sig, Sile.]
Defn: Mud or fine earth deposited from running or standing water.
SILT
Silt, v. t. [imp. & p. p. Silted; p. pr. & vb. n. Silting.]