NIGGLE

Meaning of Niggle

/ˈnɪɡ(ə)l/

verb

cause slight but persistent annoyance, discomfort, or anxiety.

“Doreen wanted to discuss matters that niggled at her mind”

Synonyms for niggle

Synonyms: Verb

• carp, 
• cavil, 
• fuss, 
• nitpick, 
• quibble