Synonyms of slam bang

Adjective

1. slam-bang, violent (vs. nonviolent)

usage: violent and sudden and noisy; "a slam-bang collision"

Adverb

1. slapdash, slam-bang

usage: in a careless or reckless manner; "the shelves were put up slapdash"

2. slam-bang

usage: with heedless speed; "yachts ran slap-bang into the convoy at 15 knots an hour"

3. slam-bang, slap-bang

usage: in a violent or sudden or noisy manner; "the pans fell slam-bang and woke the whole house"