ill-timed 
adjective
Done or occurring at an inappropriate time: an extremely ill-timed announcement...
- To use the occasion of his death to launch an attack on one aspect of his policy seems inappropriate, ill-timed, small-minded and tasteless.
- The criticism was ill-timed, but all we can do is win football games and this performance answered everybody.
- The scheme is ill-timed, ill-judged, ill-planned and ill-prepared.
Synonyms
untimely, mistimed, badly timed;
premature, early, hasty;
inopportune, inconvenient, awkward, unwelcome;
inappropriate, unsuitable, inapt;
disadvantageous, unfavourable, unfortunate, inept