謀 plot

We have a plot to take over BOWLing !!

If you say a certain password to the spy, he'll let you in on the plot.

unpremeditated ★★☆☆☆
無 (without) + 謀 (plot) = 無謀 (unpremeditated)

rash, impulsive, unpremeditated

conspiracy ★☆☆☆☆
陰 (shady) + 謀 (plot) = 陰謀 (conspiracy )