D defs.my
Entry 1 sense Webster, 1913

Disadvantageous

/dĭsˌ-ădˌ-vănˌ-tāj'-əs/ · Dis·ad·van·ta·geous · IPA /dɪsˌædvənˈteɪdʒəs/
01 a. Attended with disadvantage; unfavorable to success or prosperity; inconvenient; prejudicial; -- opposed to advantageous; as, the situation …
  1. 1.
    Attended with disadvantage; unfavorable to success or prosperity; inconvenient; prejudicial; -- opposed to advantageous; as, the situation of an army is disadvantageous for attack or defense.
    “Even in the disadvantageous position in which he had been placed, he gave clear indications of future excellence.” Prescott.