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trivial

Besides being a synonym to 'obvious', like in 'the proof is trivial', it has the meaning of 'shallow' ('the question is trivial') and moreover denotes a bunch of mathematical notions:

trivial group

trivial representation

trivial topology

trivial solution (in ODE/PDE)

etc.

Sometimes it produces confusion as it is not quite clear which sort of triviality is meant.

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trivial

Besides being a synonym to 'obvious', like in 'the proof is trivial', it has the meaning of 'shallow' ('the question is trivial') and moreover denotes a bunch of mathematical notions:

trivial group

trivial representation

trivial topology

trivial solution (in ODE/PDE)

etc.

Sometimes it produces confusion as it is not quite clear which sort of triviality is meant.