The narrator threw all his powers of description into the simultaneousness of Sally's arrival at this point and the gentleman walking straight over the pier-edge.
"Somehow Good"
William de Morgan
The laughter came from two throats that breathed as one with such perfect simultaneousness that only one was credited with the disturbance.
"Penrod and Sam"
Booth Tarkington
Sensations, or other feelings, being given, succession and simultaneousness are the two conditions, to the alternative of which they are subjected by the nature of our faculties; and no one has been able, or needs expect, to analyse the matter any farther.
"A System Of Logic, Ratiocinative And Inductive (Vol. 1 of 2)"
John Stuart Mill