Adjective advantageous has 2 senses
  1. advantageous - giving an advantage; "a contract advantageous to our country"; "socially advantageous to entertain often"
    Antonyms:
    disadvantageous, harmful, minus, negative
  2. advantageous, appropriate - appropriate for achieving a particular end; implies a lack of concern for fairness
    Antonym: inexpedient (indirect, via expedient)
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