1. in a manner that causes confusion, frustration, or persistent difficulty; in a way that troubles or harasses
Usage: formed from the adjective 'bedeviling' (present participle of 'bedevil'); typically modifies verbs or adjectives to describe how something is done or how something is

Examples

• The software bug was bedevilingly persistent, reappearing after each attempted fix.
• The witness's testimony was bedevilingly vague, leaving more questions than answers.
• The weather remained bedevilingly unpredictable throughout the entire season.
• His habit of interrupting was bedevilingly disruptive to the meeting.
• The instructions were bedevilingly unclear, confusing most of the participants.
• The problem proved bedevilingly difficult to solve despite multiple expert attempts.