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optimistic

adjective
 
 
/ˌɒp.tɪˈmɪs.tɪk/ US  /ˌɑːp.tə-/

Definition

B2 hoping or believing that good things will happen in the future: She is optimistic about her chances of winning a gold medal.Hoping and hopefulnessPotential optimistically
 
 
/-tɪ.kəl.i/ adverb
Hoping and hopefulnessPotential
(Definition of optimistic adjective from the Cambridge Advanced Learner's Dictionary & Thesaurus © Cambridge University Press)

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