optimism
affirmations (New Age)
agathism
explanatory style (attributional style)
mood (psychology)
moral idealism
New Thought
optimism bias
pessimism
philosophy
philosophy of happiness
positive mental attitude
positive psychology
pronoia (psychology)
self-efficacy
silver lining (idiom)
/suto3/google.iconoptimism
image optimism
define optimism
wikipedia optimism
weblio optimism
kotobank optimism
jisho optimism