1. In accordance with the season
   "it was seasonably cold" 
2. At an opportune time
   - timely, well-timed, apropos

See also: seasonable

Antonym: unseasonably

• lungwort
• lungyi
• lunisolar
• lunisolar calendar
• lunitidal interval
• lunk
• lunkhead
• Lunt
• lunula
• lunule
• Luo
• Luoyang
• Lupercalia
• lupin
• lupine
• Lupinus
• Lupinus albus
• Lupinus arboreus
• Lupinus luteus
• Lupinus perennis
• Lupinus subcarnosus
• Lupinus texensis
• lupus
• lupus erythematosus
• lupus vulgaris