oily
[adjective]
Synonyms: greasy, fatty, oleaginous

[TahlilGaran] English Synonym Dictionary ▲

oil‧y /ˈɔɪli/ adjective

1. covered with oil:
He wiped his hands on an oily rag.

2. similar to oil:
an oily liquid

3. oily hair or skin contains more natural oil than is usual or desirable Synonym : greasy:
a shampoo for oily hair

4. oily food contains a lot of oil or fat:
oily fish

5. someone who is oily is very polite, in a way that other people think is unpleasant and not sincere
—oiliness noun [uncountable]

[TahlilGaran] Dictionary of Contemporary English ▲

oily
adj.
VERBS be, look | become
ADV. very | rather, slightly He had rather oily hands.
naturally Lank or naturally oil hair is often difficult to care for.

[TahlilGaran] Collocations Dictionary ▲

oily
adjective
DUBIOUS: The chips were so oily that I couldn't eat them.
GOOD: The chips were so greasy that I couldn't eat them.

Usage Note:
The usual word for describing food that is unpleasant because it is cooked and presented with too much fat or oil is greasy : 'I ate the tomato and left all the greasy chips.'

[TahlilGaran] Dictionary of Common Errors ▲