happening at a bad time synonym inappropriate, inconvenient They arrived at an inopportune moment. early 16th cent.: from Latin inopportunus, from in- ‘not’ + opportunus, from ob- ‘in the direction of’ + portus ‘harbour’, originally describing the wind driving towards the harbour, hence ‘seasonable’.

Definition of inopportune as in unexpected occurring before the usual or expected time their inopportune arrival before the house was cleaned Synonyms & Similar Words Relevance unexpected early premature sudden untimely precocious unseasonable unforeseen unanticipated abrupt unlooked-for Antonyms & Near Antonyms late slow belated tardy delinquent

happening or done at a time that is not suitable or convenient: Difficulties seem to crop up at the most inopportune times. (Definition of inopportune from the Cambridge Academic Content Dictionary © Cambridge University Press)