an example of pool, careless work

blunder

to do (a piece of work) badly and clumsily

blunder, mess up

to make mistakes; do or be wrong

make a mistake; do wrong

to feel about uncertainly with the hands; use the hands awkwardly

bumble, mess up

to make (progress) difficult; get in the way of (a person)

prevent, slow down

to spoil (beauty, a feeling etc); March

hurt, damage

(in Roman myth) the god of war; the planet fourth in order of the sun

hurt, damage

(of teams, players etc with equal scores) to play a deciding match

stop, hinder

to oppose or prevent (something) successfully

stop, hinder