1. Capable of being left out

See also: incident, incidental, omit

• retrievable
• retrieval
• retrieve
• retriever
• retro
• retroact
• retroaction
• retroactive
• retroactively
• retrobulbar neuritis
• retrocede
• retrocession
• retrochoir
• retrofit
• retroflection
• retroflex
• retroflexed
• retroflexion
• retrogradation
• retrograde
• retrograde amnesia
• retrogress
• retrogression
• retrogressive
• retromandibular vein