untoward
adjective
[ ʌntəˈwɔːd ]
• unexpected and inappropriate or inconvenient.
• "both tried to behave as if nothing untoward had happened"
Similar:
unexpected,
unanticipated,
unforeseen,
unpredictable,
unpredicted,
surprising,
unusual,
inopportune,
untimely,
ill-timed,
badly timed,
mistimed,
inconvenient,
awkward,
unwelcome,
unfavourable,
adverse,
unfortunate,
infelicitous,
inappropriate,
unsuitable,
inapt,
malapropos,
unseasonable,