hastiness (n.)
- abandon
- abruptness
- alacrity
- carelessness
- casualness
- easiness
- expeditiousness
- fecklessness
- feverishness
- forgetfulness
- forwardness
- furiousness
- haste
- heedlessness
- hurriedness
- impatience
- impetuosity
- impetuousness
- improvidence
- impulse
- impulsiveness
- inconsiderateness
- inconsideration
- indifference
- insouciance
- laziness
- negligence
- oblivion
- precipitance
- precipitancy
- precipitateness
- precipitation
- precipitousness
- precociousness
- precocity
- prematureness
- prematurity
- promptness
- quickness
- rashness
- recklessness
- rush
- shiftlessness
- speed
- suddenness
- swiftness
- tactlessness
- thoughtlessness
- thriftlessness
- unmindfulness
- untimeliness
- wantonness
- wildness
