3
unbecoming(bad, poor, awkward, inappropriate, unfortunate)
3
uncalled-for(wrong, false, awkward, unsuitable, unfitting)
3
undesirable
3
undue(adjective, wrong, false, awkward, improper)
3
unmeet
3
unpunctual(adjective, untimely)
3
unwise
2
ill-chosen(adjective, appropriate, suitable, unfortunate)
2
ill-fated(bad, poor, awkward, inappropriate, unfortunate)
2
ill-omened(unfavorable, ominous, unpromising, untimeliness)
2
ill-starred(bad, poor, unpleasant, awkward, inappropriate)
2
imprudent(wrong, false, awkward, irregular, unsuitable)
2
incompatible
2
luckless(bad, poor, unpleasant, awkward, inappropriate)
2
mal a propos(expression, idiom, untimeliness)
2
not helpful
2
overdue(adjective, untimely)
2
previous
2
unhappy(bad, poor, unpleasant, awkward, inappropriate)
2
unpromising(adjective, negative, unfavorable, disapproving, ominous)
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APASmart Define. (2015). inopportune thesaurus. Retrieved September 26, 2026, from https://smartdefine.org/inopportune/thesaurus/synonyms
ChicagoSmart Define. 2015. "inopportune thesaurus" https://smartdefine.org/inopportune/thesaurus/synonyms (accessed September 26, 2026).
HarvardSmart Define 2015, inopportune thesaurus, Smart Define, viewed 26 September, 2026, <https://smartdefine.org/inopportune/thesaurus/synonyms>.
MLASmart Define. "inopportune thesaurus" 14 April 2015. Web. 26 September 2026. <https://smartdefine.org/inopportune/thesaurus/synonyms>