the trait of acting stupidly or rashly
a stupid mistake
foolish or senseless behavior
the quality of being rash and foolish
an investment that is very risky but could yield great profits
a message expressing an opinion based on incomplete evidence
a hypothesis that has been formed by speculating or conjecturing (usually with little hard evidence)
continuous and profound contemplation or musing on a subject or series of subjects of a deep or abstruse nature