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ugly as sin

ugly as sin

2 7.2
Very unpleasant to look at or to be with
  • idiom
  • Offensive
translation icon : feo que te cagas (vulgar)
  • The old building has been described as ugly as sin, with its crumbling walls and faded paint.

Examples

  • The experiment was ugly as sin, the resulting outcry huge, huge enough that Google engineers acknowledged the gaffe and said it wouldn't be repeated.

    Blog text (8)
  • Ugly as sin, I thought.

    Fiction book (1998)
  • Both are ugly as sin and huge.

    Blog text (16)
  • Ugly as sin until they bloom.

  • she's ugly as sin, but a sweet gal.

  • He's as ugly as sin and the most vicious creature I've ever set eyes upon.

  • Mr. Rochester is revoltingly coarse and as ugly as sin.

  • She is ugly as sin; I don't care if she is a product of affirmative action.

    Blog text (17)
  • Because he's ugly as sin, he specializes in roles that require masks, such as Humpty Dumpty during Mother Goose Days.

    Fiction book (1992)
  • Hell, he's ugly as sin, he smells like a skunk... and he's so ignorant he couldn't drive nails in the snow... but he's sort of easy to be around.

Synonyms

hideous
vsugly as sin
171 5.1

Very ugly and likely to make people feel shocked or disgusted

is equally extreme but also highlights unpleasant character as well as looks
repulsive
vsugly as sin
59 5.5

Causing strong dislike or disgust, like a very bad smell

is extreme in unpleasantness but can include rude or harsh judgement
unattractive
vsugly as sin
37 1.8

Not pleasant to look at or to the senses

is more forceful, indicating very severe unpleasantness in look or nature
unsightly
vsugly as sin
15 4.5

Unpleasant to look at

is more extreme, covering deep unpleasantness in appearance or character
unappealing
vsugly as sin
15 4.1

Not attractive, pleasant, or interesting

is much stronger, denoting extreme unpleasantness or offensiveness
butt-ugly
vsugly as sin
  • Offensive
5 9.3

Extremely unpleasant to look at

is similarly strong but not necessarily coarse or rude in tone
fugly
vsugly as sin
  • Offensive
3 9.9

Very ugly in an informal, rude way

is equally extreme but not limited to slang or casual speech
ill-favored
vsugly as sin
  • US
1 8.0

Not attractive to look at, especially in the face

is broader, covering extreme unpleasantness in both looks and character
unbeautiful
vsugly as sin
1 6.2

Not attractive in looks or style

is stronger, stressing extremely unpleasant appearance or character
unpretty
vsugly as sin
1 5.0

Not pleasant to look at or to be part of

is stronger, implying very intense unpleasantness or offensiveness
unlovely
vsugly as sin
1 6.0

Not attractive and unpleasant to see or hear

is stronger, stressing extreme unpleasantness rather than mild lack of charm
unhandsome
vsugly as sin
1 6.6

Not attractive to look at

is more intense, suggesting severe unpleasantness in look or character
unaesthetic
vsugly as sin
1 8.1

Not pleasant to look at

is more extreme, conveying deep unpleasantness in look or character
moche
vsugly as sin
  • Offensive
9.9

Ugly or unpleasant in appearance

is equally strong but can be used in neutral or serious contexts
ill-shapen
vsugly as sin
  • Literature
8.5

Not in a regular or attractive form

is more general, covering overall extreme unpleasantness beyond physical shape
unalluring
vsugly as sin
6.8

Not attractive or interesting

is more intense, implying strong unpleasantness rather than mere blandness
unfavored
vsugly as sin
  • US
5.3

Not attractive to look at

is stronger, suggesting extreme unpleasantness rather than simple plainness

Antonyms

1.0

Very pleasant to look at or to be with

1.0

Nice to look at in a gentle, simple way

How Ugly

ugly as sin
  • Offensive
2 7.2
hideous
171 5.1
ugly
866 1.0
unattractive
37 1.8
plain
50 2.5

Surface Forms

ugly as sin positive

Morphology

ugly + as + sin

The phrase uses the familiar comparative frame 'as ... as' with the clear adjective 'ugly', so a learner who knows the words can often infer it functions as an intensifier meaning 'very/extremely ugly'. However, using 'sin' (a moral wrong) as the comparator is a figurative, idiomatic intensifier rather than a fully compositional meaning, so the exact pragmatic force is metaphorical and not entirely predictable from the parts.

Etymology

Ugly as sin uses the idea of sin, a very bad act, as a strong comparison to show something is extreme. So saying ugly as sin means 'very ugly'.