weaken

In lang=en terms the difference between lighten and weaken

is that lighten is to emit or disclose in, or as if in, lightning; to flash out, like lightning while weaken is to become weaker.

As verbs the difference between lighten and weaken

is that lighten is to alleviate; to reduce the burden of while weaken is to make weaker.

As verbs the difference between weaken and incapacitate

is that weaken is to make weaker while incapacitate is to make incapable (of doing something.

As verbs the difference between impaired and weaken

is that impaired is (impair) while weaken is to make weaker.

As an adjective impaired

is rendered less effective.

As a noun impaired

is a criminal charge for impaired driving.

As verbs the difference between contradict and weaken

is that contradict is (obsolete) to speak against; to forbid while weaken is to make weaker.

As a verb weaken

is to make weaker.

As a noun null is

zero, nil; the cardinal number before einn.

As verbs the difference between undermines and weaken

is that undermines is third-person singular of undermine while weaken is to make weaker.

As verbs the difference between weaken and damage

is that weaken is to make weaker while damage is to impair the soundness, goodness, or value of; to harm or cause destruction.

As a noun damage is

injury or harm; the condition or measure of something not being intact.

As a verb weaken

is to make weaker.

As an adjective weakest is

(weak) most weak.

In transitive terms the difference between weaken and destroy

is that weaken is to make weaker while destroy is to put down or euthanize.

In intransitive terms the difference between weaken and destroy

is that weaken is to become weaker while destroy is to cause destruction.

As verbs the difference between feeble and weaken

is that feeble is to make feeble; to enfeeble while weaken is to make weaker.

As an adjective feeble

is deficient in physical strength; weak; infirm; debilitated.