at a snail's pace
extremely slowly, especially when this is annoying

[TahlilGaran] Dictionary of Contemporary English ▲

slowly at a slow speed:
Large white clouds drifted slowly across the sky.
The situation is slowly improving.
gradually happening slowly over a period of time:
I practised every day, and gradually got better.
Many of our forests are gradually disappearing.
little by little/bit by bit slowly, in a series of small amounts or stages:
Add the olive oil, little by little.
It’s best to do the work bit by bit.
at a snail’s pace extremely slowly, especially when this is annoying:
Traffic was moving at a snail’s pace.
The project seems to be moving at a snail’s pace.

[TahlilGaran] English Thesaurus ▲

at a snail's pace
very slowly.
The action moves at a snail's pace in this film, as if all the characters were asleep.

Etymology: from the fact that a snail (= a small animal with a round shell) moves very slowly

[TahlilGaran] English Idioms Dictionary ▲

at a snail's pace
See: SNAIL'S PACE.

[TahlilGaran] English Idioms Dictionary ▲