Found 20 stronger alternatives to upgrade your writing.
Small / young beauty
Nuance: Sweet
Endearing/youthful.
Boring
She has a pretty smile.
Better
She has a cute smile.
General positive
Nuance: Good
Very common/vague.
Boring
It is a pretty dress.
Better
It is a nice dress.
Personality / mild beauty
Nuance: Gentle
Gentle/sentimental.
Boring
That is a pretty picture.
Better
That is a sweet picture.
Pleasant / beautiful
Nuance: Delightful
Warm praise.
Boring
What a pretty garden.
Better
What a lovely garden.
Stronger beauty
Nuance: Beautiful
Standard upgrade.
Boring
She is pretty.
Better
She is beautiful.
Good-looking (people/things)
Nuance: Pleasing
Neutral/design focus.
Boring
The poster is pretty.
Better
The poster is attractive.
Appealing personality/place
Nuance: Inviting
Makes you smile.
Boring
It is a pretty house.
Better
It is a charming house.
Noticeable
Nuance: Bold
Catches the eye.
Boring
The colors are pretty.
Better
The colors are striking.
Classy / refined
Nuance: Sophisticated
Mature beauty.
Boring
She looks pretty in that coat.
Better
She looks elegant in that coat.
Fashionable
Nuance: Trendy
Focus on fashion.
Boring
That is a pretty outfit.
Better
That is a stylish outfit.
Visual (colors)
Nuance: Bright
Specific to color.
Boring
The sunset was pretty.
Better
The sunset was colorful.
Fragile beauty
Nuance: Fragile
Fine/fragile.
Boring
The flower is pretty.
Better
The flower is delicate.
Old-fashioned beauty
Nuance: Pure
Literary/archaic.
Boring
The pretty maiden.
Better
The fair maiden.
Scenic (places)
Nuance: Scenic
Like a picture.
Boring
A pretty village.
Better
A picturesque village.
Fine detail
Nuance: Perfect
High quality/detail.
Boring
The lace is pretty.
Better
The lace is exquisite.
Innocent charm
Nuance: Innocent
Literary/old-fashioned.
Boring
She had a pretty smile.
Better
She had a winsome smile.
Attractive (old-fashioned)
Nuance: Attractive
Playful/old-fashioned.
Boring
That hat is pretty.
Better
That hat is fetching.
Attracting attention
Nuance: Tempting
Tempting.
Boring
The idea was pretty.
Better
The idea was alluring.
Shining / bright
Nuance: Bright
Visual brightness.
Boring
The jewels were pretty.
Better
The jewels were dazzling.
Emotionally pleasing
Nuance: Kind
Kind and emotionally moving.
Boring
It was a pretty gesture.
Better
It was a heartwarming gesture.