The term 'sophist' suggests dishonesty and is used to criticize someone's argument. His excuse sounded like that of a sophist, more to escape blame than to tell the truth.
Pro Tip 2/3
Deceptive Arguments
'Sophist' can describe someone who is persuasive but misleading in their reasoning. Be wary of the sophist's charming rhetoric; it's designed to deceive.
Pro Tip 3/3
Insincere Tactics
A sophist may seem convincing, but uses arguments that lack sincerity or truth. Despite his confident demeanor, the politician was merely a sophist.