1
as in disgusting
causing intense displeasure, disgust, or resentment
a foul taste that made us gag
Synonyms & Similar Words
Relevance
Antonyms & Near Antonyms
2
as in turbulent
marked by wet and windy conditions
the foul weather brought out the windbreakers and rain slickers as everyone braced for a day of rough sailing
Synonyms & Similar Words
Antonyms & Near Antonyms
3
as in unfair
not being in accordance with the rules or standards of what is fair in sport
an aggressive hockey player who is known for his foul play and readiness for a fight
Synonyms & Similar Words
Antonyms & Near Antonyms
4
as in obscene
depicting or referring to sexual matters in a way that is unacceptable in polite society
that movie features nonstop foul language
Synonyms & Similar Words
Antonyms & Near Antonyms
5
as in stinking
having an unpleasant smell
the foul fumes from the paper mill
Synonyms & Similar Words
Antonyms & Near Antonyms
6
as in filthy
not clean
I wouldn't play in the foul rainwater that's collected in the feeding trough
Synonyms & Similar Words
Antonyms & Near Antonyms
1
as in to dirty
to make dirty
the mechanic fouled the bath towels with axle grease
Synonyms & Similar Words
Antonyms & Near Antonyms
2
as in to pollute
to make unfit for use by the addition of something harmful or undesirable
industrial pollution fouling the water supply
Synonyms & Similar Words
Antonyms & Near Antonyms
3
as in to humiliate
to reduce to a lower standing in one's own eyes or in others' eyes
the minister was irreparably fouled by baseless rumors and allegations
Synonyms & Similar Words
Antonyms & Near Antonyms
4
as in to rot
to go through decomposition
unless you want to smell the organic refuse as it fouls, locate the compost heap away from the house
Synonyms & Similar Words
Antonyms & Near Antonyms
Cite this Entry
“Foul.” Merriam-Webster.com Thesaurus, Merriam-Webster, https://www.merriam-webster.com/thesaurus/foul. Accessed 9 Oct. 2026.
Copy CitationLove words? Need even more definitions?
Merriam-Webster unabridged
