Have you ever witnessed a conversation where the true meaning hides beneath the surface, where every word is a carefully placed stone skimming over a deep, dark well? This is the realm of diagonal dialogue writing, the art of characters speaking around the unspeakable. It is the murmur in the silence, the confession disguised as a question, the wound wrapped in silk. To master this craft is to understand that in life, and in great fiction, we rarely say what we truly mean.
The Subterranean Art of Saying Nothing
The principle of “show, don’t tell” is a foundational law, yet its most sophisticated application is often found not in physical action, but in dialogue that shows the avoidance of action. Diagonal dialogue writing is the literary equivalent of a character’s nervous habit—the tapping finger, the averted gaze—translated into language. It moves beyond direct exposition to reveal the chasm between a character’s internal state and their external performance.
This technique creates a potent dramatic irony. The reader, privy to the subtext, watches characters engage in a delicate, often desperate, ballet of evasion. Consequently, the tension builds not from what is said, but from what remains dangerously unsaid. For a profound example, consider the works of Edgar Allan Poe. In “The Tell-Tale Heart,” the narrator’s frantic, circular monologue is a masterclass in this form. He speaks of the old man’s “vulture eye,” of his own sanity, of the police’s casual visit—all while the true subject, his guilt and the imagined heartbeat beneath the floorboards, thunders in the silence between his words.
The Anatomy of Conflict Avoidance
Characters avoid the point for countless reasons: fear of rejection, shame, a desire to maintain power, or the simple inability to articulate profound pain. Therefore, diagonal dialogue becomes a map of their emotional landscape. When a grieving widow in a Shirley Jackson story obsessively discusses the perfect arrangement of flowers instead of her loss, she is telling us everything about her grief. Jackson, a master of quiet dread, understands that the most terrifying truths are those that refuse to be named.
In contrast to direct confrontation, this avoidance creates a richer conflict. The tension is relational and psychological. For example, in Tana French’s crime novels, detectives often circle a victim’s family, asking about routines and alibis, while the real conversation swirls unasked: Did you hate him? Do you feel free? The procedural talk is the diagonal line; the emotional truth is the point of impact.
Crafting Diagonal Dialogue: Techniques from the Masters
Weaponize the Mundane
One powerful technique is to anchor a high-stakes emotional exchange in a banal, everyday activity. The characters discuss the broken dishwasher while the marriage fractures. They debate the merits of a restaurant’s menu while one contemplates betrayal. This juxtaposition highlights the inadequacy of their words. The object becomes a proxy for the emotion too large to confront. Daphne du Maurier excels at this in Rebecca, where conversations about household management at Manderley are always, implicitly, about ownership, jealousy, and the shadow of the first wife.
Employ Deflection and Non-Sequiturs
A character under emotional siege will naturally deflect. If asked, “Are you angry with me?” the diagonal response might be, “I’m just tired. Did you remember to pay the electric bill?” The shift to logistics is a shield. Meanwhile, the non-sequitur—an answer that ignores the question entirely—can be a devastating tool. It screams that the question is too painful, too real, or too dangerous to even acknowledge. Haruki Murakami’s characters often engage in these elliptical, dreamlike exchanges, where the avoidance of a central mystery creates the novel’s haunting, melancholic atmosphere.
Layer the Subtext with Specificity
Effective diagonal dialogue is not vague; it is hyper-specific about the wrong thing. The specificity demonstrates how desperately the character is focusing on the diversion. Jorge Luis Borges, in his labyrinthine tales, often has characters discuss intricate, fantastical details as a way to avoid a more profound, existential horror. Apply this: don’t have a character say, “I miss you.” Have them ask, with intense focus, “Did you ever find that copy of the book we were reading? The one with the cracked spine?” The question is about the book, but the subtext is a desperate, nostalgic reaching for a shared past. As Literary Hub often explores, specificity is the soul of evocative writing.
The Holloway Conversations
The old house exhaled dust. Elara stood at the kitchen sink, polishing a water spot from a glass that was already clean. The tap drip was a metronome for the silence. Outside, the first autumn leaves skittered across the flagstones.
“They’re saying the old oak by the gate might not survive the winter,” she said, her voice light, conversational. She held the glass up to the weak afternoon light.
From the doorway, her brother, Julian, followed her gaze to the blurred shape of the tree through the grimy pane. “It’s always looked half-dead,” he replied. “Stubborn, though. Like Dad.”
Elara set the glass down with a precise click. “Stubbornness isn’t the same as strength, is it? Sometimes it’s just a refusal to admit you’re rotting from the inside.” She began polishing another spot. “The doctor called. While you were out.”
Julian did not ask what the doctor said. He walked to the window, rubbing a clean circle on the glass with his sleeve to look at the tree, and the sky beyond. “We should probably get a second opinion about the roof. That leak above the stairs is spreading.” He watched a crow land on the supposedly dying oak, its branches shivering but holding.
The Echoes of the Unspoken
Mastering diagonal dialogue writing is an exercise in empathy and observation. It requires you to listen to the pauses, to respect the weight of what a character cannot voice. Techniques from writers like Shirley Jackson and Gillian Flynn show us that the most revealing conversations are often the ones that miss the point entirely. Flynn, in Gone Girl, constructs entire identities and deceptions through characters who speak in carefully curated, diagonally evasive narratives, proving that indirect speech can be the most dangerous weapon in a character’s arsenal.
When you write dialogue next, resist the urge to make your characters articulate their hearts with painful clarity. Instead, guide them into the shadows of their own fear. Let them talk about the weather, the cracked teapot, the dying tree. For it is there, in the hollow spaces between words, in the conversation that never quite happens, that the true story breathes, and beats, and waits. After all, what is the unsaid but a ghost haunting the edges of the page, demanding to be felt rather than seen?

