Strugglingly can be an adveb of struggle.
However it is an uncommon word because it feels very awkward and is not necessary.
"He struggles to carry the bag" sounds better than "he carries the bag struggingly". See how awkward the adverb is?
My advice to to avoid adverbs as much as you can in writing.
Jihad is an Islamic word meaning the struggle against those who do not believe.
battle
One word that means struggle is "strife". It refers to conflicts, disagreements, or difficulties that involve strong and opposing interests or opinions.
The meaning of the root word counter is 'against'.
The likely word is the verb "stammer" (struggle with speech).The similar word is stamina, meaning endurance.
It comes from the Arabic جهاد (jihād, meaning "struggle; effort").
The 4-letter root word meaning against or opposite is "anti."
It was a struggle against communism.
opposing
protection against infection
It was a party alliance that provided its helping hand in the movement against the MNC company in Bolivia water struggle.
The root word of "diagonal" is "agon," which comes from the Greek word "agonizesthai," meaning to struggle or compete.