KEY: Modern.
SYN: Present, existent, new, new-fangled, new-fashioned, recent,late, novel, later.
ANT: Past, bygone, former, olden, ancient, old-fashioned, antiquated,obsolete.

• Sentient
• Sentiment
• Sentimental
• Sentinel
• Separable
• Separate \a
• Separate, {[u]?}
• Separation
• Sepulchral
• Sepulture
• Sequacious
• Sequel
• Sequence
• Sequestered
• Seraphic
• Serene
• Serf
• Series
• Serious
• Serpentine
• Servant
• Serve
• Service
• Serviceable
• Servile