diff --git a/src/operators.jl b/src/operators.jl
index bb95ec40..5b0ad34d 100644
--- a/src/operators.jl
+++ b/src/operators.jl
@@ -101,9 +101,14 @@ end
 
 LinearAlgebra.adjoint(v::AbstractVariable) = v
 LinearAlgebra.adjoint(m::AbstractMonomial) = m
-LinearAlgebra.adjoint(t::T) where {T <: AbstractTerm} = LinearAlgebra.adjoint(coefficient(t)) * monomial(t)
+LinearAlgebra.adjoint(t::AbstractTerm) = LinearAlgebra.adjoint(coefficient(t)) * monomial(t)
 LinearAlgebra.adjoint(p::AbstractPolynomialLike) = polynomial(map(LinearAlgebra.adjoint, terms(p)))
 
+LinearAlgebra.transpose(v::AbstractVariable) = v
+LinearAlgebra.transpose(m::AbstractMonomial) = m
+LinearAlgebra.transpose(t::AbstractTerm) = LinearAlgebra.transpose(coefficient(t)) * monomial(t)
+LinearAlgebra.transpose(p::AbstractPolynomialLike) = polynomial(map(LinearAlgebra.transpose, terms(p)))
+
 LinearAlgebra.dot(p1::AbstractPolynomialLike, p2::AbstractPolynomialLike) = p1' * p2
 LinearAlgebra.dot(x, p::AbstractPolynomialLike) = x' * p
 LinearAlgebra.dot(p::AbstractPolynomialLike, x) = p' * x
diff --git a/test/monomial.jl b/test/monomial.jl
index b1bf963a..8407aa86 100644
--- a/test/monomial.jl
+++ b/test/monomial.jl
@@ -46,4 +46,9 @@ const MP = MultivariatePolynomials
     @test monic(x^2) == x^2
 
     @test MP._div(2x^2*y[1]^3, x*y[1]^2) == 2x*y[1]
+
+    @test transpose(x) == x
+    @test adjoint(x) == x
+    @test transpose(x^2) == x^2
+    @test adjoint(x^2) == x^2
 end
diff --git a/test/polynomial.jl b/test/polynomial.jl
index 38ba5146..c460fcc8 100644
--- a/test/polynomial.jl
+++ b/test/polynomial.jl
@@ -104,6 +104,8 @@ const MP = MultivariatePolynomials
     end
 
     @test (x + y)' == x + y
+    @test transpose(x + y) == x + y
+    @test transpose([1 2; 3 4] * x) == [1 3; 2 4] * x
 
     @test removemonomials(4x^2*y + x*y + 2x, [x*y]) == 4x^2*y + 2x