optimism

As nouns the difference between optimism and reality

is that optimism is a tendency to expect the best, or at least, a favourable outcome while reality is the state of being actual or real.

As nouns the difference between optimism and realism

is that optimism is a tendency to expect the best, or at least, a favourable outcome while realism is a concern for fact or reality and rejection of the impractical and visionary.

As nouns the difference between optimism and existentialism

is that optimism is a tendency to expect the best, or at least, a favourable outcome while existentialism is (philosophy|not countable) a twentieth-century philosophical movement emphasizing the uniqueness of each human existence in freely making its self-defining choices.

As nouns the difference between optimism and sanguine

is that optimism is a tendency to expect the best, or at least, a favourable outcome while sanguine is blood colour; red.

As an adjective sanguine is

having the colour of blood; red.

As a verb sanguine is

to stain with blood; to impart the colour of blood to; to ensanguine.

As a noun optimism

is a tendency to expect the best, or at least, a favourable outcome.

As a proper noun mania is

(roman mythology) the goddess of the dead and ghosts.

As nouns the difference between optimism and ignorance

is that optimism is a tendency to expect the best, or at least, a favourable outcome while ignorance is the condition of being uninformed or uneducated. Lack of knowledge or information.

As a proper noun Ignorance is

a personification of ignorance.

As nouns the difference between skepticism and optimism

is that skepticism is (us) the practice or philosophy of being a skeptic while optimism is a tendency to expect the best, or at least, a favourable outcome.

As nouns the difference between optimism and practical

is that optimism is a tendency to expect the best, or at least, a favourable outcome while practical is a part of an exam or series of exams in which the candidate has to demonstrate their practical ability.

As an adjective practical is

based on practice or action rather than theory or hypothesis.

As an adjective pessimistic

is marked by pessimism and little hopefulness; expecting the worst.

As a noun optimism is

a tendency to expect the best, or at least, a favourable outcome.

As nouns the difference between optimism and perseverance

is that optimism is a tendency to expect the best, or at least, a favourable outcome while perseverance is continuing in a course of action without regard to discouragement, opposition or previous failure.