Synonyms for Worried (same or very similar meaning)
WordNet sense 1 (afflicted with or marked by anxious uneasiness or trouble or grief):
distressed, disturbed, upset, disquieted, upset
WordNet sense 2 (mentally upset over possible misfortune or danger etc):
apprehensive
WordNet sense 3 (lacking a sense of security or affording no ease or reassurance):
uneasy
From the ODE community, based on WordNet
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