knuckling under

Caving to pressure

Knuckling under is yielding to pressure or authority, often reluctantly.

The phrase suggests submission after resistance—giving in when you'd rather not: After months of holding out, the union finally knuckled under to management's demands.

It implies capitulation rather than willing agreement.

submission

yielding

Bending under pressure

acquiescence · succumbing · giving in · backing down · bowing · folding · conceding · relenting · deferring · kowtowing

defeat

vanquished

Defeated completely

overpowered · subdued · crushed · routed · humiliated · overthrown · collapse · downfall · trounced · dominated

powerlessness

meekness

Gentle, unassertive disposition

weakness · timidity · submissiveness · spinelessness · servility · cowardice · resignation · impotence · defeatism · capitulating

Opposites
submission vs. resistance

knuckling underresisting

Actively opposing pressure

standing one's ground · fighting back · digging in · holding out · pushing back

compliance vs. defiance

knuckling underdefying

Actively refusing obedience

defiance · rebelling · insubordination · disobeying · mutinying

weakness vs. strength of will

knuckling underpersevering

Maintaining effort despite difficulty

weathering the storm · hanging tough · standing tall · staying strong · holding firm

Family

knuckle, knuckles, knuckled, knuckling, under

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Used worldwide · Timeless · Negative · Everyday, not technical · Rated G