Crime Investigation Terminology

adjective describing someone or something that is persistent and determined in demanding or insisting on something

• The insistent knocking on the door made me wonder who could be so persistent.
• She was insistent on getting her way no matter what.
• My mom is so insistent about me cleaning my room, it's annoying.
• The insistent rain tapped on the window, creating a soothing rhythm.

verb to cause someone to feel nervous, afraid, or upset

• The unexpected noise unnerved the audience during the performance.
• I don't know why, but that movie really unnerved me.
• The creepy music in that game totally unnerved me!
• Her calm demeanor unnerved her opponents during the debate.