Your question is likely a duplicate. See Why is עֲרוּמִּ֔ים (Gen 2:25) translated "naked," and in the very next verse its singular form, עָר֔וּם (Gen 3:1), is translated "crafty/shrewd?"
However, let me offer what might be generously termed an "originalist" view (or less generously, a "naive" view).
Speculations on Genesis and the Serpent
Now the serpent was more cunning than any beast of the field which
Yahweh had made. – Genesis 3:1 literal Hebrew
But the serpent was most skilled of all of the wild beasts upon the
earth whom The Lord God made. – Genesis 3:1 literal Greek from the
Septuagint (practical, skilled, intelligent)
The Hebrew root for nachash (נָחָשׁ) is the basis for a noun, a verb, and an adjective. As a masculine noun, it can mean serpent (the feminine version means bronze), as a verb it can mean deceiver or diviner, and as an adjective it can mean shining. Serpent, deceiver, diviner, shining. How interesting!
Concerning the word, “cunning” in Hebrew (עָר֔וּם), the word is used seven times in the Bible. Six of those times, which are all in Proverbs, the Hebrew word is translated prudent or sensible. In the Greek Septuagint, translated from Hebrew into Greek under the auspices of the Jewish Sanhedrin, we read φρόνιμος (phronimos), which means practical, skilled, or intelligent in Greek (wise, prudent).
It’s also interesting to note that the difference between the Hebrew words for cunning (עָר֔וּם, ‘ā·rūm) and naked (עָר֛וֹם, ‘ā·rō·wm) is only in the vowels that were used, which were added as "vowel points" by the Masoretes much later.
Serpents Weren't Snakes
The image of Eve and Adam, who was there with her, being tempted by a snake is a great example of the problems encountered when people bring preconceptions into the scriptures. It's easy to do. Certainly, medieval painters did so, as well as scholars of ancient near-eastern literature and philosophy!
Genesis 3 Taken Literally
Let's lay aside our own preconceptions for a moment and consider what the first part of Genesis literally presents.
- It's the account of God's creation of the heaven and the earth.
- God created various types of animals first and then humans, male and female.
- God commanded them to sexually reproduce and fill the earth.
- The most “cunning” (or “naked”) of all the wild animals that God created was named "serpent" by Adam.
- Serpents, whatever they were, apparently could speak the language of humans, otherwise the passage wouldn’t bother to explain that the serpent was more cunning than all the other animals. One such serpent tricked humans into disobeying God's command.
- God pronounced a judgment on all humans and either all serpents or just this one, and predicted hatred between Eve and the serpent. Eve’s offspring (singular) and the serpent’s offspring (singular) would continue this hatred.
- The serpent would wound the heel of Eve’s offspring (singular), but Eve’s offspring (singular) would deliver a fatal wound to the serpent.
Inferences Based on Genesis 3
Our inferences about serpents include the following:
- Serpents were also created male and female, and commanded to reproduce as did all the other animals that God created.
- Serpents were more intelligent than orangutans, parrots and crows, tucuxi dolphins, and octopuses. Currently, tucuxi dolphins are considered the most intelligent wild animal on earth today.
- Perhaps all serpents except one perished in the flood. The one that survived is “the fleeing serpent” mentioned in Isaiah and Job, and “the serpent of old” mentioned in Revelation, and also called Leviathan and “the Dragon.”
- Before God cursed serpents—or at least that serpent—THEY DID NOT CRAWL ALONG THE GROUND AS SNAKES, otherwise God’s pronouncement would be pointless and wouldn’t have been a curse. The imagery of eating dust may come from the lowly snake whose tongue flickers near the ground to pick up the scent of prey. However, an animal that actually does eat dirt is the earthworm. Wormlike fly larvae, called maggots, eat only rotting flesh.
- The motive of this serpent to deceive the humans is not stated. We do know that serpents were created before humans, but humans were given stewardship over the earth and all plant and animal life. Perhaps, this serpent, under the instigation of satan, became jealous, just as Cain later became jealous of Abel. With the death of humans, serpents could then take primacy over the earth. Or perhaps satan incarnated himself conveniently as a serpent, while Messiah would be incarnated as a human.
- Perhaps Eve believed that she herself would give birth to the one who would deliver the fatal wound to the serpent. She named her first son Cain, which in Hebrew means “acquired,” and she is quoted as saying, “I have acquired a man from Yahweh.” The Septuagint translation is “I have acquired a man through (or on account of) Yahweh.” Eve’s desire might thus be a reasonable interpretation of “the desire of women” alluded to in Daniel 11 and fulfilled by Mary’s giving birth to Jesus, the Messiah.
Further Study
https://www.scripture4all.org/OnlineInterlinear/OTpdf/gen3.pdf
What's the meaning of Genesis 3:15? - The Case for Messiah (One for Israel)
https://www.youtube.com/watch?v=wdOxc-nvh1k