Antonyms

Rear refers to the back part of something. Front is the correct antonym as it refers to the forward part. The other options (exult, retain, remitter) are unrelated spatial terms.

Remote means far away in distance or time. Near is the correct antonym as it means close in distance. The other options (retrain, progress, pervert) don't represent the opposite spatial relationship.

Relax means to make less tense or strict. Tighten is the correct antonym as it means to make more tense or strict. The other options (tumble, toner, form) don't represent the opposite state of tension.

Renovate means to restore, repair, or improve something to a good state of repair. Deface means to spoil or damage the surface of something, making these opposites. The other options are unrelated: demerit is a fault, dust refers to powder, and deaden means to make less intense.

Replenish means to fill something up again or restore to a former level. Deplete means to reduce the quantity or supply of something, using it up completely. These are direct opposites. Digress means to stray from the topic, divert means to change direction, and divulge means to reveal.

Frighten means to fill with fear and its antonym is calm, so option 3 is correct. Option 1 is incorrect, as terror means to frighten, so its a synonym. Option 2 is incorrect, as harass means to bother or trouble. Option 4 is incorrect, as quarrel means to fight.

Curse means a wish or prayer for evil and its opposite is to bless, so option 2 is the correct answer. Option 1 is incorrect, as punish means to inflict punishment. Option 3 is incorrect, as warn means to make aware in advance of possible danger. Option 4 is incorrect, as criticise means to find fault.

The dictionary meaning of the word plenary means absolute, full or complete, so, the obvious opposite word is incomplete. Thus, (2) is the correct option choice.

Vicissitude means unpredictable changes or variations or mutability. So, the opposite is obviously immutability. Thus, (1) is the correct option choice.

Monotony refers to sameness, lack of variety, or tedious repetition. Diversity is the state of being varied or different - the direct opposite of monotony. Authenticity and resiliency are unrelated concepts.

Angular describes something with sharp angles or corners, like a triangle or polygon. Straight is the opposite - lacking angles, going directly from point to point without deviation. Hollow and motionless are unrelated concepts.

Conviction means a firmly held belief or certainty about something. Doubt is the opposite - a state of uncertainty, hesitation, or lack of firm belief. Simplicity, decline, and reflection are not antonyms of conviction.

Indefatigable means incapable of being tired out; untiring; persistent. 'Easily tried' (meaning easily fatigued or worn out) is the direct opposite. Distinctive, faithful, and partial are not related to the concept of endurance.

Fertile means capable of producing vegetation, crops, or offspring; productive. Unproductive is the direct opposite - not capable of producing or yielding results. Tiresome, unsettled, and methodical are not antonyms.