Antonym of 'Weary' -

• Weary:
English meaning: very tired or lacking energy and enthusiasm.
Bangla meaning: ক্লান্ত।

Options,
ক) Fatigued:
English meaning: tired.
Bangla meaning: অবসন্ন।

খ) Derision:
English meaning: the situation in which someone or something is laughed at and considered stupid or of no value.
Bangla meaning: উপহাস; অবহাস; তামাসা; পরিহাস।

গ) Frailty:
English meaning: weakness and lack of health or strength.
Bangla meaning: ভঙ্গুরতা; নশ্বরতা।

ঘ) Energetic:
English meaning: having or involving a lot of energy.
Bangla meaning: উদ্যমশীল; কর্মশক্তিসম্পন্ন।

অপশন বিবেচনা করে দেখা যায়, Antonym of 'weary' - Energetic.

Source: Cambridge & Accessible Dictionary.