I need to define what godless means first
: godless means to believe in nothing. To believe life is meaningless. That this life is just pleasure, instinct, and that the fittest shall prevail.
Many atheists believe in something, which can be wisdom, art, creativity, fairness, cooperation, knowledge, justice, peace.
They pursue these things, and their life is filled with meaning.
But godlessness is the rejection of all the positive values theists associate with deities. And trust me, there are theists who are godless, because they think religion is just a cultural figment.
So godless doesn't mean necessarily atheist.
I think a better way of wording the OP might have been to say something like:
"I'm going to try to define what godless means to me. I see godless in a sense of believing in nothing, and I also see it as having a certain tone of believing life may be meaningless."
And I'd continue, then later on I'd say about atheists:
"Many atheists don't subscribe to life as meaningless. They find meaning in art...." (Continued)
Then in the next paragraph, I'd say something like:
"There are some positive values that come with deities. Humans have some of them as well. There are actually some theists who don't display these values. Some theists also believe in more of a cultural sense in regards to their religion, rather than subscribe to a real belief in God."
"It's also important to note that not all atheists are according to my definition of godless."
Then, as
@SomeRandom said, you might face a little bit of push-back about defining terms still, but to get past it might also require understanding terms like "nihilism" and "social darwinism" and using them instead.
I also apologize if I misunderstood your posts a bit initially, myself.