as clear as mud

Impossible to understand

Ironic expression meaning completely unclear or confusing—the opposite of what it literally suggests.

Someone explains a complex tax rule and you understand nothing: Well, that's as clear as mud.

The phrase gently mocks explanations that fail to clarify.

incomprehensible

confusing

Causing mental uncertainty

puzzling · unintelligible · incomprehensible · convoluted · cryptic · enigmatic · indecipherable · unfathomable · impenetrable · nonsensical

vague

ambiguous

Having multiple interpretations

indefinite · uncertain · equivocal · obscure · hazy · fuzzy · indistinct · murky · blurry · imprecise

ironic

sarcastic

Mockingly insincere in tone

dry · deadpan · mocking · facetious · satirical · understated · backhanded · cutting · withering · dismissive

Opposites
clarity/comprehensibility

as clear as mudcrystal clear

Entirely unambiguous, perfectly understood

clear as a bell · plain as day · lucid · straightforward · self-explanatory

literal visual transparency

as clear as mudcrystal clear

Entirely unambiguous, perfectly understood

transparent · see-through · translucent · crystalline · limpid

Family

clear, mudding, muddily

Familiarity
Top 100,000
Profile
Known to kids · Used worldwide · Timeless · Everyday, not technical · Rated G