lets bygones be bygones (verb) forgive: stop blame and grant pardon
Sinonime: abrupt, ad-lib,
automatic,
careless, devil-may-care,
emotional,
extemporaneous,
flaky*, gone off deep end,
hasty, headlong, hot-and-cold,
impetuous, instinctive, intuitive, involuntary, jumping the gun,
mad, offhand,
passionate,
precipitate,
quick,
rash, spontaneous,
sudden,
swift, unconsidered,
unexpected, unmeditated,
unpredictable, unpremeditated, unprompted, up-and-down,
violent, winging it
Antonime: cautious,
considering, heedful, premeditative,
thoughtful,
wise