Main entry: usual
Definition: occurring or encountered or experienced or observed frequently or in accordance with regular practice or procedure
Usage: grew the usual vegetables; the usual summer heat; came at the usual time; the child's usual bedtime
Antonyms: unusual
Definition: not usual or common or ordinary
Antonyms: irregular
Definition: contrary to rule or accepted order or general practice
Antonyms: irregular
Definition: (of solids) not having clear dimensions that can be measured; volume must be determined with the principle of liquid displacement
Antonyms: irregular
Definition: (used of the military) not belonging to or engaged in by regular army forces
Antonyms: unaccustomed
Definition: not habituated to; unfamiliar with
Antonyms: acute
Definition: having or experiencing a rapid onset and short but severe course
Main entry: usual, common
Definition: commonly encountered
Usage: a common (or familiar) complaint; the usual greeting
Antonyms: unfamiliar
Definition: not known or well known
Definition: being definitely out of the ordinary and unexpected; slightly odd or even a bit weird