murmurs

"The condition for getting a raise at work is meeting your quarterly targets. "

"The children were excited to go to their classroom in the morning. "

"The student's discontent with the course material was evident in her low grades. "

"The photo of the distant mountain range was indistinct, making it hard to see the peaks clearly. "

"He listened carefully to his mother's concerns, feeling sorrowful about her disappointment. "

"My dissatisfaction with the school's new lunch menu was clear in my grumpy sighs. "

"The constant buzzing of the phone was a major annoyance. "

"My sister's joyful expression showed how happy she was about the good news. "

"Given that "indistinguishable" is an adjective, not a noun, here's a sentence using it correctly as an adjective: "The twins were so alike that their voices were almost indistinguishable." "

"My complaint about the noisy neighbors was finally heard by the landlord. "

"The beggar muttered words of thanks, as passersby dropped coins in his cup."

"It is dangerous to sail in turbulent seas."