بَريء is masculine. It is pronounced BAREE’. The apostrophe at the end signifies a glottal stop, which is almost inaudible, unless followed by a vowel, as in BAREE'UN, BAREE'AN, or BAREE'IN (three case inflections, used for different grammatical functions). The stress in all of these forms is on the second syllable.

بَريئة is feminine. It is pronounced BAREE'A. A silent T is implied, which ceases to be silent when followed by any of the three case inflections (BAREE'ATUN, BAREE'ATAN, BAREE'ATIN). The stress is on the second syllable in all of the feminine forms as well.

Since your context implies a singular referent, I will not overburden you with all the plural forms. If you feel you need these, please let us know.

Fuad

1 a: free from guilt or sin especially through lack of knowledge of evil : blameless <an innocent child> b: harmless in effect or intention <searching for a hidden motive in even the most innocent conversation — Leonard Wibberley>; also : candid <gave me an innocent gaze> c: free from legal guilt or fault; also : lawful <a wholly innocent transaction>
2 a: lacking or reflecting a lack of sophistication, guile, or self-consciousness : artless, ingenuous b: ignorant <almost entirely innocent of Latin — C. L. Wrenn>; also : unaware <perfectly innocent of the confusion he had created — B. R. Haydon>
3: lacking or deprived of something <her face innocent of cosmetics — Marcia Davenport>
— innocent noun
— in·no·cent·ly adverb