Definition
In pleading, a pleading or portion thereof is insensible when it is unintelligible — that is, without sense or meaning — due to the omission of material words or other defects in expression that render the text incapable of being understood. The term is a technical characterization of a defect in form, not substance: the pleading says something, but what it says cannot be comprehended as a legal proposition.
Common Language
Modern common usage (Wiktionary): Unable to be perceived by the senses; incapable of physical sensation; incapable of mental or emotional feeling; indifferent or apathetic.
Historical common usage (Webster's 1913): Destitute of the power of feeling or perceiving; wanting bodily sensibility; not susceptible of emotion or passion; void of feeling; apathetic; indifferent.
The gap here is significant. In ordinary English — both historically and today — insensible almost always describes a person or creature: someone unconscious, unfeeling, or emotionally unmoved. In legal pleading, the term is applied to text, not persons. A pleading is insensible not because it is emotionally cold but because it is linguistically broken. A researcher encountering insensible in a legal context should resist the common-language pull toward the physical or emotional sense and ask instead whether a defect in the pleading's language is being identified.
Why It Matters in Research
Researchers working in historical pleading materials — particularly common law sources from the eighteenth and nineteenth centuries — will encounter insensible as a formal term of art used to attack the sufficiency of a pleading on grounds of unintelligibility. The term appears in the same analytical neighborhood as repugnant (internally contradictory) and ambiguous (susceptible of multiple meanings), but insensible is the more severe characterization: the text cannot even be parsed, let alone interpreted.
The critical trap is conflation with the common-language sense. A historical judicial opinion stating that a pleading is insensible does not mean the pleading is unfeeling or unconscious — it means the pleading fails the basic threshold of comprehensibility. Misreading this term in historical sources could lead a researcher to miscategorize the nature of a pleading defect.
Temporal awareness matters. Insensible as a pleading term belongs firmly to the common law pleading era. With the adoption of code pleading in the mid-nineteenth century and the later spread of notice pleading under modern procedural rules, the vocabulary of formal pleading defects shifted substantially. The term insensible in its technical legal sense is unlikely to appear in twentieth-century American procedural opinions except in historical discussion. Researchers should treat it as a marker of older pleading doctrine.
The reference to Union Sewer Pipe Co. v. Olson in Black's 2nd edition is the only case citation across the historical dictionaries and provides a rare opportunity to trace the term into reported American case law from the transitional period between common law and code pleading practice.
Historical Dictionary Support
The five historical dictionaries are in near-complete agreement, which itself signals that this is a settled, narrow term of art rather than a contested or evolving concept. Black's (both editions), Burrill, and Bouvier all define insensible by reference to the same source — Stephens on Pleading — and use virtually identical language. The convergence on a single treatise authority (with only a one-page variation between editions of that treatise) suggests the term's legal meaning was crystallized through academic pleading doctrine rather than developed through extensive case law.
Anderson's entry is the outlier, offering only a cross-reference to SENSE rather than a substantive definition. This is a known limitation of Anderson's — it frequently chains entries rather than defining them independently — and researchers should not treat the cross-reference as substantive guidance.
What the historical dictionaries collectively miss: none addresses the procedural consequence of a finding of insensibility. A pleading found insensible was subject to a motion to strike or a special demurrer in common law practice, but the dictionaries treat the term as definitional rather than operational. Researchers seeking to understand what a court actually did with an insensible pleading must look beyond the dictionary shelf to pleading treatises and case reporters.
Encyclopedia Cross-Reference
See Law Mind Encyclopedia: Pleading (Common Law); Demurrer; Pleading Defects and Objections.