infelicitously (adverb)

1. The painter infelicitously chose the wrong colors, causing the painting to look dull and unappealing.

2. The speaker infelicitously mixed up the religious customs of two different faiths, causing confusion and offense among the attendees.

3. The comedian infelicitously told a tasteless joke that made the audience uncomfortable and silent.

4. In the horror movie, the protagonist infelicitously walked into a room full of bloodstains and realized they were trapped with a serial killer.