familiarized

Became well versed

Familiarized is the past tense of familiarize, meaning to make someone acquainted with something or to become acquainted yourself.

You get familiarized with new software, a neighborhood, or workplace procedures: Once I familiarized myself with the controls, flying the drone was easy.

The British spelling is familiarised.

acclimated

accustomed

Adapted through habit

habituatedConditioned by repetition
adjustedChanged to improve fit
adaptedMade fit for purpose

acclimated · attuned · conditioned · normalized · settled · assimilated · integrated · reconciled · inured · seasoned

acquainted

introduced

Made formally acquainted

briefedGiven essential information
informedGiven necessary knowledge
orientedPositioned toward a point

versed · initiated · educated · enlightened · aware · cognizant · conversant · appraised · clued-in · schooled

comfortable

at-ease

Relaxed military stance

relaxedFree of stress
comfortablePhysically at ease
secureProtected from harm

settled · confident · assured · unintimidated · emboldened · oriented · grounded · situated · established · anchored

Opposites

knowledge/acquaintance state

familiarizedunfamiliar

Not previously known

unacquainted · ignorant · unaware · uninformed · uninitiated

orientation/preparation

familiarizedunoriented

Lacking directional positioning

disoriented · unprepared · unaccustomed · lost · bewildered

Family

familiarize, familiarizing, familiarizes

Familiarity: Top 100,000
Profile: Used worldwide · Timeless · Abstract · Everyday, not technical · Rated G