Synonyms of 'sideways'
He glanced sideways at her.
2 to the side
They moved sideways, their arms still locked together.
to the side
Alfred shot him a sideways glance.
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Covert activities or situations are secret or hidden.
They have been supplying covert military aid to the rebels.
If you describe someone's behaviour as furtive, you disapprove of them behaving as if they want to keep something secret or hidden.
a furtive glance over her shoulder
He referred indirectly to the territorial dispute.
in a roundabout way
not in so many words
Thesaurus for sideways from the Collins English Thesaurus
Sideways means from or towards the side of something or someone.