1. Of or relating to the sequential performance of multiple operations
   - serial, in series 
2. (of e.g. lines or paths) not parallel; converging

See also: asynchronous, oblique

• risk arbitrage
• risk capital
• risk of exposure
• risk of infection
• risk taker
• risk-free
• riskily
• riskiness
• riskless
• risklessness
• risky
• risky venture
• risotto
• risqué
• Riss glaciation
• tabula rasa
• tabular
• tabular array
• tabular matter
• tabularise
• tabularize
• tabulate
• tabulation
• tabulator
• tabun