haste B2

/heɪst/ Great speed in doing something, often with too little care.

hasten C2+

/ˈheɪsən/ to move or act quickly; to cause something to happen sooner

hasteful C2+

/ˈheɪstfəl/ marked by haste; hurried or precipitate (archaic)

unhasty C2+

/ʌnˈheɪsti/ not hurried; deliberate and measured