Synonym of the word 'Tacit' is -

Tacit (adjective)
English Meaning: Understood without being expressed directly.
Bangla Meaning: অনুক্ত; নীরব; মৌন; মানস: tacit consent, মানসানুজ্ঞা: tacit agreement, নীরব/মৌনসম্মতি।

Synonyms:
Implicit (নিহিত; চাপা),
Implied (ঊহ্য),
Unspoken (অকথিত),
Implied, (উহ্য), Wordless (শব্দহীন)।

Antonyms:
Explicit (পরিষ্কারভাবে ও পরিপূর্ণভাবে প্রকাশিত),
Stated (বিবৃত),
Spoken (উচ্চারিত),
Phonetic (ধ্বনিগত),
Expressed (ব্যক্ত)।

Other Forms:
Tacitly (adverb) মনে মনে; নীরবে।

Example Sentence:
1. He gave tacit approval to the plan.
2. She felt that she had her parents' tacit approval to borrow the car.

Source: Lecture.