Antonyms of noun opportuneness

1 sense of opportuneness

Sense 1
opportuneness, patness, timeliness -- (timely convenience)
       Antonym of inopportuneness (Sense 1)
      => inopportuneness, untimeliness -- (the quality of occurring at an inconvenient time)

Synonyms/Hypernyms (Ordered by Estimated Frequency) of noun opportuneness

1 sense of opportuneness

Sense 1
opportuneness, patness, timeliness -- (timely convenience)
       => convenience -- (the quality of being useful and convenient; "they offered the convenience of an installment plan")