1. Guided by whim and fancy
   - flighty, flyaway, scatterbrained

See also: frivolous

• stigmatism
• stigmatist
• stigmatization
• stigmatize
• stilb
• stilbene
• stilbesterol
• stilbestrol
• stilbite
• stilboestrol
• stile
• stiletto
• stiletto heel
• still
• still life
• Still's disease
• still-fish
• still-hunt
• stillage
• stillbirth
• stillborn
• stillborn infant
• stillness
• stillroom
• Stillson wrench