adjective
accountable, in charge
Synonyms: answerable, at fault, at the helm, authoritative, bonded, bound, bound to, carrying the load, censurable, chargeable, compelled, constrained, contracted, culpable, decision-making, devolving on, duty-bound, engaged, executive, exposed, fettered, guilty, hampered, held, high, important, in authority, in control, incumbent, liable, minding the store, obligated, obliged, on the hook, open, pledged, subject, susceptive, sworn to, tied, to blame, under contract, under obligation
Antonyms: excused, exempt, free, immune, irresponsible
adjective
trustworthy, mature
Synonyms: able, adult, capable, competent, conscientious, dependable, dutiful, effective, efficient, faithful, firm, levelheaded, loyal, qualified, rational, reliable, self-reliant, sensible, sober, sound, stable, steadfast, steady, tried, trusty, upright
Antonyms: immature, irresponsible, untrustworthy