I looked on Google translate, and it says "incomodo" means "uncomfortable." Uncomfortable -- can mean physically uncomfortable (like if your shoes are too tight). Uncomfortable and awkward can also mean the same thing: an unpleasant feeling because a situation is embarrassing -- "There was an awkward [or uncomfortable] silence when his ex-wife showed up." Uneasy -- is closer in meaning to "worried," as in "I had an uneasy feeling that I had left the iron on at home."

"Uneasy" and "awkward" have the same meaning, mas o menos. These words can be used interchangeably in many situations. "Uneasy" is typically used to describe a sense of fear while "awkward" is more often used to describe a sense of embarrassment.