The two friends were distinct in every thing; dress, manners, hair-style and food habits.

Distinct : recognizably different in nature from something else of a similar type.
Similar : having a resemblance in appearance, character, or quantity, without being identical.
Uniform : remaining the same in all cases and at all times; unchanging in form or character.
Opposite : situated on the other or further side when seen from a specified or implicit viewpoint; facing.
Different : not the same as another or each other; unlike in nature, form, or quality.

Antonym of Distinct is Similar