[sil.ly] adj sil.li.er ; -est [ME sely, silly happy, innocent, pitiable, feeble, fr. OE saelig, fr. OE sael happiness; akin to OHG salig happy] (14c) 1 archaic: helpless, weak
2. a: rustic, plain b obs: lowly in station: humble 3 a: weak in intellect: foolish b: exhibiting or indicative of a lack of common sense or sound judgment "a very ~ mistake" c: trifling, frivolous
4: being stunned or dazed "scared ~" "knocked me ~" syn see simple -- sil.li.ly adv -- sil.li.ness n -- silly n or adv