BE NEGLIGENT &c. adj.; take no care of &c. (take care of [See Care]); neglect; let slip, let go; lay -, set -, cast -, put- aside; keep -, leave- out of sight; lose sight of.
DELAY, defer, procrastinate, postpone, adjourn, pigeonhole, tie up with red tape, shelve, stay, suspend, table, lay on the table.
OVERLOOK, disregard; pass over, pass by; let pass; blink; wink at, connive at; gloss over; take no -note, - notice, - thought, - account- of; pay no regard to; laisser aller [F.].
SCAMP; trifle, fribble; do by halves; slight (despise) [See Contempt]; play with, trifle with; slur; skimp [dial. & colloq.]; skim, - the surface; effleurer [F.]; take a cursory view of [See Attention]; slur -, slip -, skip -, jump- over; pretermit, miss, skip, jump, cut [colloq.], omit, give the go-by to [slang], push aside, throw into the background, sink.
IGNORE, refuse to notice, shut ones eyes to, refuse to hear, turn a deaf ear to, leave out of ones calculation; not attend to [See Attention], not mind; not trouble -oneself, - ones head- -with, - about; forget [See Oblivion].
BE CAUGHT NAPPING (not expect) [See Inexpectation]; leave a loose thread; let the grass grow under ones feet.
RENDER NEGLECTFUL &c. adj.; put or throw off ones guard.
NEGLIGENTLY &c. adj.; hand over head [obs.], in any old way [colloq.], anyhow; in an unguarded moment (unexpectedly) [See Inexpectation]; per incuriam [L.]; when the cat is away.
INTERJECTION:
NEVER MIND, no matter, let it pass; it will be all the same a hundred years hence; mañana [Sp.].