Busy or occupied with.

Roget 490: knowing etc. v.; cognitive; acroamatic^†.    aware of, cognizant of, conscious of; acquainted with, made acquainted with; privy to, no stranger to; au fait with, au courant; in the secret; up to, alive to; behind the scenes, behind the curtain; let into; apprized of, informed of; undeceived.    proficient with, versed with, read with, forward with, strong with, at home in; conversant with, familiar with.    erudite, instructed, leaned, lettered, educated; well conned, well informed, well read, well grounded, well educated; enlightened, shrewd, savant, blue, bookish, scholastic, solid, profound, deep-read, book-learned; accomplished etc. (skillful) 698; omniscient; self-taught.    known etc. v.; ascertained, well-known, recognized, received, notorious, noted; proverbial; familiar, familiar as household words, familiar to every schoolboy; hackneyed, trite, trivial, commonplace.    cognoscible^†, cognizable.    ... show more

Roget 861: courageous, brave; valiant, valorous; gallant, intrepid; spirited, spiritful^†; high-spirited, high-mettled^†; mettlesome, plucky; manly, manful; resolute; stout, stout-hearted; iron-hearted, lion-hearted; heart of oak; Penthesilean.    bold, bold-spirited; daring, audacious; fearless, dauntless, dreadless^†, aweless; undaunted, unappalled, undismayed, unawed, unblanched, unabashed, unalarmed, unflinching, unshrinking^†, unblanching^†, unapprehensive; confident, self-reliant; bold as a lion, bold as brass.    enterprising, adventurous; venturous, venturesome; dashing, chivalrous; soldierly etc. (warlike) 722; heroic.    fierce, savage; pugnacious etc. (bellicose) 720.    strong-minded, hardy, doughty; firm etc. (stable) 150; determined etc. (resolved) 604; dogged, indomitable etc. (persevering) 604.1. up to, up to the scratch; upon one's mettle; reassured etc. v.; unfeared^†, undreaded^†.    ... show more

Having the requisite qualities for:
— The work isn't up to the standard I require.

synonyms: adequate to, capable, equal to.

Roget 157: powerful, puissant; potential; capable, able; equal to, up to; cogent, valid; efficient, productive; effective, effectual, efficacious, adequate, competent; multipotent^†, plenipotent^†, omnipotent; almighty.    forcible etc. adj.. (energetic) 171; influential etc. 175; productive etc. 168.    ... show more

Roget 698: skillful, dexterous, adroit, expert, apt, handy, quick, deft, ready, gain; slick, smart etc. (active) 682; proficient, good at, up to, at home in, master of, a good hand at, au fait, thoroughbred, masterly, crack, accomplished; conversant etc. (knowing) 490.    experienced, practiced, skilled, hackneyed; up in, well up in; in practice, in proper cue; competent, efficient, qualified, capable, fitted, fit for, up to the mark, trained, initiated, prepared, primed, finished.    clever, cute, able, ingenious, felicitous, gifted, talented, endowed; inventive etc. 515; shrewd, sharp, on the ball etc. (intelligent) 498; cunning etc. 702; alive to, up to snuff, not to be caught with chaff; discreet.    neat-handed, fine-fingered, nimble-fingered, ambidextrous, sure-footed; cut out for, fitted for.    technical, artistic, scientific, daedalian^†, shipshape; workman-like, business-like, statesman-like.    ... show more