14:I[5014,["/_next/static/chunks/11d1gk4m2o846.js","/_next/static/chunks/14mrh2-p_w84d.js","/_next/static/chunks/40y9lkvta2o_p.js"],"default"] 15:I[38392,["/_next/static/chunks/11d1gk4m2o846.js","/_next/static/chunks/14mrh2-p_w84d.js","/_next/static/chunks/40y9lkvta2o_p.js"],"PracticeCard"] 17:I[70570,["/_next/static/chunks/11d1gk4m2o846.js","/_next/static/chunks/14mrh2-p_w84d.js","/_next/static/chunks/40y9lkvta2o_p.js"],"ExamAppearanceBadge"] 16:T52e,The antonym of "Sanctity" is- ঘ) Irreverence.

Sanctity (noun)
Bangla Meaning: পবিত্রতা; সাধুতা; ধর্মপ্রাণতা।
English Meaning: holiness of life and character, godliness.

Synonyms:
holiness, spirituality, morality, devotion, devoutness, saintliness.
Antonyms:
impiety, unholiness, godlessness, irreverence, ungodliness, wickedness.

ঘ) Irreverence
Bangla Meaning: অশ্রদ্ধা; শ্রদ্ধাহীনতা।
English Meaning: lack of reverence.

Other options:
ক) Spirituality
Bangla Meaning: আধ্যাত্মিক গুণ; আধ্যাত্মিকতা।
English Meaning: something that in ecclesiastical law belongs to the church or to a cleric as such.

খ) Austere
Bangla Meaning: নির্মম নীতিপরায়ণ; কঠোর।
English Meaning: stern and cold in appearance or manner.

গ) Bombastic
Bangla Meaning: আড়ম্বরপূর্ণ।
English Meaning: marked by or given to bombast: pompous, overblown.

Source: Merriam-Webster Dictionary, Accessible Dictionary.