Inclined to act on impulse rather than thought.(noun)
Wiktionary.org : Text is available under the Creative Commons Attribution-ShareAlike License
Use "impulsivity" in a sentence
"This suggests that impulsivity is a “developmentally continuous” trait that can lead to a lifetime of risky behavior."
"According to Eisenberg “this gene is likely to be involved in impulsivity, reward anticipation and addiction”."
"Among other things, the brain's caudate nucleus is involved with regulating impulsivity, which is related to self control, and addictive behaviors, Small noted."