plural of sillabub (alternative form of syllabubs).

(dated or hypercorrect) In a silly manner; foolishly.

Alternative spelling of Silly Billy

(rare) The thick, voluminous, and shiny soil turned over by a plow.

superlative form of silly: most silly.

comparative degree of silly: most sillily.

comparative form of silly: more silly

comparative form of sillily: more sillily

plural of silliness

(Britain, Australia, New Zealand, idiomatic) To act in a stupid or reckless manner.