s, a, o, e, n, t, i, u are letters that make 'instantaneousness'
neo, AN, NT, INS, ant, USN, SS, tan, instantaneous, instant, inst, ane, in, US, IN, NE, ness, Es, In, Ne, Ta, Sn are words within 'instantaneousness'
1 possible definitions for 'instantaneousness'
Under this definition, instantaneousness is a noun and has the following properties:
immediacy, immediateness, instancy have the same meaning as 'instantaneousness'
'instantaneousness' can be a type of celerity, quickness, rapidity, rapidness, speediness.
immediate, quick, prompt, straightaway, instantaneous, instant(a) are derivatives of 'instantaneousness'.