unattractive, unappealing, unpleasant, hideous, unlovely, unprepossessing, unsightly, horrible, frightful, awful, ghastly, vile, revolting, repellent, repulsive, repugnant; grotesque, disgusting, monstrous, reptilian, misshapen, deformed, disfigured, homely, plain
"Obstitute" is not a recognized English word in standard dictionaries. It appears to be a typographical error or a misspelling of the word "substitute." If you meant to use "substitute," it refers to something or someone that takes the place of another.
You can use "in lieu of" as a substitute for "for."
Another synonym is intermittent. You could also use the words random irregular occasional
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your ugly
eat, use
Flesh, figure, and anatomical frame can substitute for human body. If you are talking about a dead human body, you can use the word corpse.
Substitute or exchange can be used instead of replace.
you can not substitute me. The director Substituted lead actor.
The symbol &
Which witch is beautiful and which witch is ugly ?
"I don't have any milk, so I'll have to use a substitute like almond milk instead." This sentence uses the word "substitute" correctly by suggesting the use of an alternative to milk, such as almond milk.