Ecstasy: Gloom :: Humiliation : ?

• Ecstasy
English meaning: a state of extreme happiness, especially when feeling pleasure.
Bangla meaning: পরমানন্দ; আধ্যাত্মিক সিদ্ধিলাভের অনুভূ...

• Gloom
English meaning: feelings of great unhappiness and loss of hope.
Bangla meaning: আধো-অন্ধকার; অস্পষ্টতা, বিষণ্ণ হত্তয়া, বিষণ্ণ করান, হতাশ হত্তয়া।

• Humiliation 
English meaning: to make someone feel ashamed or lose respect for himself or herself.
Bangla meaning: অপমান।

Options,
• Rendezvous:
English meaning: an arrangement to meet someone, especially secretly, at a particular place and time, or the place itself
 Bangla meaning: যে স্থানে লোকে প্রায়ই মিলিত হয়; মিলনস্থল।

• Conjecture:
English meaning: a guess about something based on how it seems and not on proof
Bangla meaning: অনুমান; সঙ্গত কারণ ব্যতিরেকে গঠিত ধারণা।

• Diligent:
English meaning: careful and using a lot of effort
Bangla meaning: অধ্যবসায়ী; পরিশ্রমী।

• Exaltation:
English meaning:
1. the act of raising someone or something to a more important position
2. a very strong feeling of happiness
Bangla meaning: উন্নয়ন; পরমানন্দ।

Complete analogy: Ecstasy: Gloom :: Humiliation : Exaltation
Relation: Gloom is the opposite of Ecstasy in the same way Exaltation is the opposite of Humiliation.

Source: Cambridge & Accessible Dictionary.