in·at·ten·tion 
/ˌɪnəˈtɛnʃən/ noun
/ˌɪnəˈtɛnʃən/ noun [noncount] : failure to carefully think about, listen to, or watch someone or something : lack of attention
▪ Many traffic accidents are the result of driver inattention. ▪ They lost several potential clients through their inattention to detail.
▪ Many traffic accidents are the result of driver inattention. ▪ They lost several potential clients through their inattention to detail.
— in·at·ten·tive /ˌɪnəˈtɛntɪv/ adjective [more inattentive; most inattentive]
▪ inattentive drivers ▪ inattentive behavior
/ˌɪnəˈtɛntɪv/ adjective [more inattentive; most inattentive] ▪ inattentive drivers ▪ inattentive behavior
— in·at·ten·tive·ly adverb
▪ I was listening inattentively and missed what she said.
▪ I was listening inattentively and missed what she said.
— in·at·ten·tive·ness noun [noncount]
▪ mistakes due to inattentiveness [=inattention]
▪ mistakes due to inattentiveness [=inattention]
