Words similar to optimistic

Example sentences for: optimistic

How can you use “optimistic” in a sentence? Here are some example sentences to help you improve your vocabulary:

Since most current vaccine strategies are based upon the hypothesis that induction of T cell immunity will lead to control of viral replication, it is difficult to be optimistic when a strong and broad immune response is unable to prevent disease progression.
He was studiously neutral, utterly unflappable and unfailingly optimistic as bombs, killings and expulsions threatened to derail the peace process.
These calculations make highly optimistic assumptions, and less favorable assumptions can lead to sample size requirements above 50,000 sibling pairs.
Hard currencies aren't pegged to metals any longer, but in casual political and macroeconomic parlance, soft-money people are those who take an optimistic and permissive attitude toward control of the money supply, and hard-money people are those who take a grouchy and restrictive one.
With less optimistic assumptions (treatment-centered response/mixed ART effects), the number of new infections rises, to 4.3 million per year by 2020 (a 14% increase); mortality trends are similar to the optimistic scenario in the short term, but worse in the long term, even compared to the baseline.