[adj] (often followed by `with') not corresponding in size or degree or extent; "a reward incommensurate with his effort"
disproportionate, incommensurable
commensurate
abnormal, absurd, anomalous, disappointing, disheartening, displeasing, disproportionate, dissatisfactory, inadequate, incoherent, incommensurable, incomparable, incompatible, incongruous, inconsequent, inconsistent, inconsonant, insufficient, irreconcila