infelicitous

adjective3

1. •
   Unhappy or unfortunate.

   • If leading a "dog's life" be considered a peculiar phase of human misery, the life of a Boys' Dog is still more infelicitous. — 1973
2. •
   Inappropriate or awkward; not well said, expressed, or done.

   • "Now, you've got just grounds for shooting me," he said gaily, and instantly regretted his infelicitous remark. — 1909
3. •
   Of a sentence or utterance: not semantically and pragmatically coherent.