Loosen vs. Untighten

Loosenverb

(transitive) To make loose.

‘to loosen a knot; to loosen one's grip / hold on something’; ‘After the Thanksgiving meal, Bill loosened his belt.’;

Untightenverb

(transitive) To loosen; to make something less tight.

Loosenverb

(intransitive) To become loose.

‘I noticed that my seatbelt had gradually loosened during the journey.’;

Untightenverb

To make less tight or tense; to loosen.

Loosenverb

(transitive) To disengage (a device that restrains).

Loosenverb

(intransitive) To become unfastened or undone.

Loosenverb

(transitive) To free from restraint; to set at liberty.

Loosenverb

(transitive) To relieve (the bowels) from constipation; to promote defecation.

Loosenverb

To create a breach or rift between (two parties).

Loosenverb

To sail away (from the shore).

Loosenverb

To make loose; to free from tightness, tension, firmness, or fixedness; to make less dense or compact; as, to loosen a string, or a knot; to loosen a rock in the earth.

‘After a year's rooting, then shaking doth the tree good by loosening of the earth.’;

Loosenverb

To free from restraint; to set at liberty..

‘It loosens his hands, and assists his understanding.’;

Loosenverb

To remove costiveness from; to facilitate or increase the alvine discharges of.

Loosenverb

To become loose; to become less tight, firm, or compact.

Loosenverb

make loose or looser;

‘loosen the tension on a rope’;

Loosenverb

make less severe or strict;

‘The government relaxed the curfew after most of the rebels were caught’;

Loosenverb

become less severe or strict;

‘The rules relaxed after the new director arrived’;

Loosenverb

disentangle and raise the fibers of;

‘tease wool’;

Loosenverb

cause to become loose;

‘undo the shoelace’; ‘untie the knot’; ‘loosen the necktie’;

Loosenverb

make less dense;

‘loosen the soil’;

Loosenverb

become loose or looser or less tight;

‘The noose loosened’; ‘the rope relaxed’;