(it's) no wonder

(it's) no wonder

It is not surprising or unexpected at all. You just worked a 20-hour shift? It's no wonder you look so tired. No wonder. This wire is completely frayed. I'm surprised the TV kept working as long as it did.
See also: no, wonder
Farlex Dictionary of Idioms.

no wonder

[something is] not surprising. No wonder the baby is crying. She's wet. It's no wonder that plant died. You watered it too much.
See also: no, wonder
McGraw-Hill Dictionary of American Idioms and Phrasal Verbs.

no wonder

Also, small wonder. It's not at all (or hardly) surprising, as in With the goalie out with a sprained ankle, it's no wonder you lost the game, or If he finished off all of the turkey, small wonder he has a stomachache. [c. a.d. 900]
See also: no, wonder
The American Heritage® Dictionary of Idioms by Christine Ammer.

it’s no/small/little ˈwonder (that)...

it’s not surprising: If you walked all the way, it’s little wonder you’re late. ‘The heating’s gone off.’ ‘I thought it was cold. No wonder!’
See also: little, no, small
Farlex Partner Idioms Dictionary
See also:
  • no wonder
  • it's a wonder that
  • it's no/small/little wonder...
  • (it's) little wonder
  • (it's) small wonder
  • small wonder
  • wonder
  • no
  • small
  • little